MSDTC, an abbreviation for Microsoft’s Distributed Transaction Coordinator (DTC), is a service component implanted in recently marketed Microsoft Windows systems (operating systems Windows 2000 and after, and Windows NT 4.0 has the MSDTC). Its job is coordinating the various transactions among multiple resource managers, including but not limited to databases, file systems, and message queues. Installing and Configuring MSDTC on a Windows 2003 Server Cluster There are two main ways on installing the MSDTC in Windows Server 2003, one of the more widely, if not the most used server system today. Before anything else, the MSDTC resource must be created by enabling the Network DTC access. Method 1: Cluster Administrator Cluster Administrator can be used to install MSDTC on all nodes in a cluster, as you only need to install the MSDTC once to have an effect on all. 1. Start the Cluster Administrator by: A. Click Start, and then All Programs B. Go to Administrative Tools, and click Cluster Administrator 2. Create a Group called “MSDTC Group” containing a Network Name, IP Address, and a Physical Disk, by: A. Click File Menu, New, and then Group B. Go through the New Group Wizard which will help you create the MSDTC Group 3. Create an IP address resource by: A. Right click on the MSDTC Group, and click NewResource B. Create a name (eg. MSDTC IP Address) C. Go to Resource Type, click IP Address, and check MSDTC Group, and then Next D. Go to Possible Owners and click Next E. Go to Dependencies and click Next as you do not want to add any dependencies F. Go to TCP/IP Address Parameters and choose the public network G. Type in the static IP address for the MSDTC Group and click Next H. Click Finish and Ok 4. Create a Network Name resource by: A. Right click on the MSDTC Group, and click NewResource B. Create a name (eg. MSDTC Network Name) C. Go to Resource Type, click Network Name, and check MSDTC Group, and then Next D. Go to Possible Owners and click Next E. Go to Dependencies, add the MSDTC IP Address as a dependency, and click Next F. Go to Name, and type in the name of the MSDTC resource and click Next G. Click Finish and Ok 5. Create a Physical Disk resource by: A. Right click on the MSDTC Group, and click NewResource B. Create a name (eg. MSDTC Physical Disk) C. Go to Resource Type, click Physical Disk, and check MSDTC Group, and then Next D. Go to Possible Owners and click Next E. Go to Dependencies and click Next as you do not want to add any dependencies F. Go to Disk Paramters and select a physical disk for the MSDTC G. Click Finish and Ok 6. Right click on the MSDTC group and click NewResource 7. Type in a name 8. Go to Resource Type and select the Distributed Transaction Coordinator in the MSDTC Group and click Next 9. Go to Possible Owners and click Next 10. Go to Dependencies, hold on to your Ctrl key, select the Network Name and Physical Disk that you created, and click Add 11. Click Finish and Ok to complete the creation of the resource 12. Enable the network DTC access 13. Right click the MSDTC Resource and click Bring Online Method 2: Cluster. exe Cluster. exe is powerful for installing and configuring the MSDTC on multiple clusters. 1. Enable the network DTC access unless the cluster is dedicated to Exchange Server, which would make the enabling unecessary 2. Using the command prompt (cmd. exe), create a Group called MSDTC Group (make sure that the group contains an IP Address, Network Name, and a Physical Disk) 3. Create the MSDTC Resource by typing the following into the command prompt: cluster clustername res "MSDTC Resource" /CREATE /GROUP:"MSDTC Group" /TYPE:"Distributed Transaction Coordinator" 4. Run the following command in the command prompt: cluster clustername res "MSDTC Resource" /ADDDEP:"Network Name" cluster clustername res "MSDTC Resource" /ADDDEP:"Disk X:" A. Network Name is the Network Name resource and Disk X is MSDTC’s physical disk 5. Run the following command in the command prompt to bring online the MSDTC: cluster clustername res "MSDTC Resource" /ON
ODBC (Open Data Base Connectivity) is a function library which provides a common API (Application Programming Interface) for ODBC compliant database management systems. ODBC was developed by the SQL Access Group in 1992. ODBC operates as an industry-standard "shim" between applications which utilize databases and the databases themselves. If an application is developed using ODBC, the application will be able to store data in any database management system which is equipped with an ODBC driver. ODBC drivers are often developed in sub-components: • An ODBC Driver Manager • ODBC Drivers The application submits ODBC calls to the ODBC driver manager. The ODBC driver manager selects the appropriate ODBC driver, loads that driver, and sends read or write requests using that driver. The ODBC driver processes the ODBC function calls, submits the SQL requests to the database, and returns the results to the application.
Port forwarding, often referred to as. tunnelling. is the forwarding of network ports from one network device to another. This is commonly done using a NAT (network address translation) enabled router or server and another computer within the local network. The main purpose of using port forwarding is to allow hosts outside your local network who doesn. t have their own public IP address access to some services running on machines within your LAN. Port forwarding is easy to set up on a router since the management interface allows for easy configuration. In some cases this easy configuration feature might be a problem since most routers cannot provide complex customization for port forwarding and other services. In such case a Linux box can do the job. With Linux, port forwarding is configured by adding iptable rules with a DNAT target to the PREROUTING chain and a SNAT target to the POSTROUTING chain. After doing so iptables will use the existent masquerade table to rewrite packages so they will reach the desired host in concordance with the port forwarding rules you provided. This is similar to OSX and BSD, however ipfw is used. In most cases ipfw is already compiled with kernel. With port forwarding you can use a router to connect to the Internet and also run a web-server or a FTP server on a computer with your LAN. By using port forwarding you can instruct the router to forward all information that comes on a specific net port (such as 80 for the web-server or 21 for the FTP server) to a host within the local network. This means that if an outside host try to make a HTTP request towards the public IP the router has, it will be sent to the machine known to handle such request within the LAN. This is done in a transparent manner, meaning that the network client is not aware of the fact that he is accessing a machine found somewhere in the LAN. Applications of such methods are widely used both in business environments and in small home networks. With more and more devices in the home needing to be connected to the internet or to each other, the router has become a very popular device worldwide. In such situations port forwarding is used to allow access within the network for applications that require access on a specific port, such as games or multimedia streaming software. eaming softwaR. th port forwarding you can use a router to connect to the Internet and also run a web-server or a FTP server on a computer with your LAN. By using port forwarding you can instruct the router to forward all information that comes on a specific net port (such as 80 for the web-server or 21 for the FTP server) to a host within the local network. This means that if an outside host try to make a HTTP request towards the public IP the router has, it will be sent to the machine known to handle such request within the LAN. This is done in a transparent manner, meaning that the network client is not aware of the fact that he is accessing a machine found somewhere in the LAN. Applications of such methods are widely used both in business environments and in small home networks. With more and more devices in the home needing to be connected to the internet or to each other, the router has become a very popular device worldwide. In such situations port forwarding is used to allow access within the network for applications that require access on a specific port, such as games or multimedia streaming software. Forwards are possible with larger networks. This is done when one router or server forward packets to another router or server that delivers it to the host that should handle it. Such methods are rarely used in small home networks, but can become useful in larger networks whether or not they are connected to the Internet. Port forwarding can be more secure than using other methods such as a DMZ (demilitarized zone). When using a DMZ all the ports of your machine are forwarded, thus you are no longer truly behind the firewall. Port forwarding provides you security by only allowing access to ports you specifically select.
Radius, Remote Authentication Dial In User Service is a networking concept which is used to provide access to users to services which require logging in, generally with a username and password. This protocol uses servers to store information in the form of a list of user names or passwords. So, when a user wants to log onto for example, the internet, he enters his user name and password and submits them. The data is sent to the RADIUS server and checked against a list of existing users and their respective passwords. If the username and password entered by the user matches the one on the list, then the user is granted access to the internet. This protocol is widely used by Internet Service Providers (ISPs) as well as large companies, corporations, educational institutions and other organizations to regulate and manage access to the internet as well as to internal networks. Normally these authentications protocol is carried out by devices like the modem, Digital Subscriber Lines (DSLs) automatically. The most important functions of the RADIUS server can be summarized as AAA or Authentication, Authorization and Accounting. The first two 'A's refer to allowing a user access to a network. If we look in detail at our previous example, we will come to know that a RADIUS server may return any one of three responses to the login request – "Nay" which means that access to the user is denied under all circumstances, "Challenge" which means that the user is asked for additional information before access is granted, and "Yea" which grants to the user, access to the network. Accounting refers to the billing function carried out by RADIUS. It refers to the situations in which the users' time or activities are monitored and logged. This is especially useful for those who run on postpaid internet which is calculated either by Data Transfer or by time. The RADIUS server receives a command to start billing when the user logs on and later to stop billing, when the users logs off. RADIUS servers nowadays, can also access databases stored remotely to check detailsmunication between the user and the server is nowadays done through highly encrypted, reliable channels.
USB which stands for Universal Serial Bus is a standard for serial communications between computers and other devices. It was first introduced in 1996 and was jointly promoted by Intel, Phillips, US Robotics and Microsoft. USB was developed so that many different types of devices could be accommodated under a single common interface. Due to this capability, nowadays USB devices are the most popular form of plug and play devices. In short, a plug and play device is an external device which we connect to the computer either for data transfer or to provide additional capabilities to the computer. Normally plug and play devices are used along with additional software which acts as a link between the device and the CPU of the computer. This software is called the driver. Many other standards exist for such connections like PS2, but USB devices provide a distinct advantage over other standards mainly due to two significant reasons. First, the USB standard allows devices to be connected to the computer without needing to restart the computer. For many previous standards, the computer needed to be restarted before the device could be used. Secondly, the USB device takes its power supply directly from the CPU thus eliminating the need for an external power supply cord. This was only possible due to the fact that USB devices typically consume very little power. Nowadays USB devices are used for a number of purposes. The most popular adaptation of the USB devices is in the form of USB drives (also called pen-drives). These are basically devices which offer portable data storage facilities. Often these devices are as small as a keychain. With the advent of technology, USB drives can now store as much as 200GB of data and still appear very small. Another important use of USB is for webcams which allow us to transmit and store photos and videos directly on our computers. Apart from these uses, USB also allows us to connect audio devices like iPods, microphones and speakers, network between different computers with USB routers and also provides an interface to link our other gadgets like mobile phones and PDAs. With Windows becoming more common it is now simpler to synchronize our gadgets as windows can automatically recognize and install our USB devices. Another new technology which is making waves is USB 2.0, which provides data transfer speeds of up to 480mbps (Megabytes per second).
If you have done any research into the confusing world of long distance telephone rates, you have discovered that conventional long distance is expensive compared to almost any of the alternatives. This is especially true when you factor in, the extra fees and taxes added on by governments. Conventional phone companies rely on people being either uninformed or unmotivated to check out the alternatives. Usually they bundle long distance with local services so you are never quite sure how much your long distance service is costing. For instance, many consumers sign up for a local plan that includes unlimited long distance calling. They usually pay between $50 and $70 for this package. But they could get the same level of service for much less money by staying with a $20-$30/month local package and using a dial around plan that charges only 1.9 cents/minute for calls to the USA and Canada. **Phone Cards - a solution with serious limitations** One alternative to conventional long distance service is to purchase a prepaid phone card. These cards are often purchased online. After signing up you are sent an account number and PIN which allow you to access the long distance system. Having a phone card lets you place long distance calls by calling a toll free access number, entering your account information, and then dialing the number you want to call. Some of the features and shortcomings of phone cards are as follows: -- Phone cards are often country or region specific. It is difficult to find one card that gives you good rates to multiple countries or regions. -- They are good for short term situations like traveling, or for occasional use. -- Calling can be cumbersome unless you can find a "PIN-less" phone card. -- Charges can be higher than expected because of hidden fees and taxes. -- Calls can be more expensive because of longer call duration rounding intervals. A 6.5 minute call will be billed as 7 minutes if a 1-minute rounding interval is used. But it will be billed as 9 minutes if they use a 3-minute interval. -- Phone cards often have a higher minimum call duration. Some cards charge a minimum of one rounding interval for every call, even if it is not completed. **Dial Around Plans - a much better alternative** A much better alternative is what is called a dial around plan. They are called "dial around plans" because you use a local number or toll free number to bypass or "dial around" the conventional phone company. You call the special access number, and once you get a dial tone you dial the area code and number of the party you are calling. Here are some of the features you can get with a quality dial around plan: -- With good plans you only pay for minutes used. There are no fees, taxes, or hidden charges. -- No monthly minimum charge or account fee. -- Very low long distance rates, including low domestic rates to the USA and Canada. -- Savings are substantial - from 50% to 90% less than conventional long distance. -- Quality plans do not require a caller to enter an account number or PIN when calling from registered numbers. You can register as many as 10 phone numbers with your account. -- Connection quality is comparable to conventional long distance. -- Some plans (higher quality ones) give you free online account management including real time call history. This lets you see the details of every call -- the number called, time and date of the call, duration, and cost. -- Dial around plans can be used at home, with a cell phone, or while traveling in the USA. **Summary - Dial Around Plans are much more versatile** While it is true that phone cards provide convenience when traveling, dial around plans offer a better and cheaper long distance alternative for anyone who uses long distance service on a regular basis.
Owned by EchoStar Communications Corporation, the Dish network was launched in March, 1996. Dish network is the fastest-growing digital satellite television service provider in the United States, with a subscriber base of 12 million. They provide various types programming packages, delivering 250 channels with free equipment and installation parts. Dish network offers 110 foreign-language channels covering 25 different languages, thus connecting people. The best part of a Dish network is its interactive channel. There are over 22 virtual interactive channels that allow viewers at home to shop, play games, and much more. Dish network service allows viewers to restrict inappropriate channels by removing it from the list. Dish network has a 24 hour customer service, as they care a lot about their customer relationships. Almost all the dish network dealers offer life time warranty for the basic satellite equipments and require no maintenance. A minimal monthly subscription cost is required for enjoying 24 hours a day entertainment. There are special names assigned to the Dish network packages depending on the number of channels that a subscriber can view. Some of the names of the packages are America’s Top 60, America’s Top 120, America’s Top 180, and more. Some of the channels that you can view with the help of a Dish network are Animal Planet, BBC America, Bravo, Cinemax, CNN, Comedy Central, CNBC, The Discovery Channel, Disney Channel, ESPN, The Fox Channels, HBO, Hallmark, Sci-Fi Channel, Soapnet, Style, Toon Disney, TV Guide Channel, and much more. You can also view some local channels with the help of a free second dish. Dish network provides satellite transmitted, high quality audio and video data to various places all over the United States. Almost all the dealers of Dish network provide free DVR and HD receivers. Dish network, catering 24 hours to customer needs, was ranked No. 1 in customer satisfaction by J. D Power and Associates Cable/Satellite TV Customer Satisfaction Study. Dish network was also ranked No. 1 in customer satisfaction by University of Michigan Business School. Dish network offers 100% digital picture, with theatre quality sound and highly acclaimed customer service. It is economical and provides you with the latest equipments like the DVR and HD.
The DLLHOST. EXE is a registry process which is run automatically by the Microsoft Windows Operating system. This process is important for managing DLL based applications. DLLHOST is by default a startup process which means that the process runs from the minute you boot up your system. This file should not be terminated by the user unless it is found to cause problems. Bad DLLHOST processes can easily be identified using one of many free registry scanners available on the internet. DLL itself refers to the Dynamic-link library, this is a concept implemented by Microsoft in the Windows Operating system. It consists of using a shared library to run most of its applications. These libraries usually end with *.dll or *.ocx extension. The latter is for DLL library files with embedded ActiveX controls. DLLs are in fact very similar to executable (*.EXE) files. This similarity is due to the fact that both DLLs and EXEs contain data, resources and code in variable combinations. Some common examples of DLLs include icon libraries, font files and such. Normally icon libraries have ICL extensions and font files the FOT extension.
If you look hard enough you can find phone cards in almost any denomination. They have cards for $10, $20, $30, and they even have dollar phone cards. If you are looking for a calling card you can find them in almost any amount you want. Now they even have rechargeable phone cards. There are internet site on the web that will let you buy a calling card from them and then you can even recharge it using a credit cared and the same site. Different calling cards allow different amounts of time depending on how much money is on them and where you are planning on calling. While there are dollar phone cards out there they are good for quick calls to close countries or to places within the same country. Most calls will cost you at least 3 cents per minute so a dollar phone card is not going to get you very far. My family and friends buy phone cars in denominations around $20. These are good if you are planning on making multiple calls. The dollar pone cards are best for quick emergency calls and nothing more. Even if the dollar phone cards are rechargeable it would be a waste as you would have to recharge after the first use. If you are planning on getting a rechargeable phone card you might as well start out with one with a decent amount of time on it. All in all phone cards come in very handing if you are traveling abroad, and it is always a good idea to stock up on them in case you do not have enough cash to make a call from a pay phone.
You browse the Internet, find interesting files, applications, open source software, movie trailers or even your favorite band's songs. And you wish you could use them whenever you want and so you decide to download it. Ever wondered what happens when you click on download? You send a request (few bytes of data) to the hosting server seeking its permission to access the file (or rather send you digital data). This request signal will be replied with an acknowledge signal from the server followed by the actual data requested for. There is much more of communication engineering involved, but let’s not dig deep into it. Now that the actual transmission is taking place, what are the facts about the speed of transfer and data rates of transmission? There is considerable variation of speed with the type of connection you use. If its dial up that you are using, you are actually sending digital data along with the voice data (at the same time). A s a result, they share the bandwidth available and so the speeds are slow. Whereas now we are using ISDN (Integrated signals digital networking) which was the major reason for the big boost in internet speeds. Gone are those days when we were using 144Kbps to 2Mbps. At the present moment the data rates we experience is tremendous, thanks to Broadband ISDN. Of course there has always been a tradeoff between bandwidth and speed. But to be light on our pockets, we started using download accelerators with moderate speed internet (why pay for the 332 Mbps connection and use only a fraction of the bandwidth?) These accelerators are smart workers. They do the same function as every other downloader but in a more efficient way so as to utilize whatever we have to the fullest which makes us feel that the speeds have improved. They split the files internally into smaller parts and download each part simultaneously using many connections within the allocated bandwidth (which is provided to you by your ISP). These are advantageous as: - the bandwidth limitation you faced is circumvented. - the smaller size of faulty files and so fault tolerance. - better speeds.
In order to download DVDs to your Iphone, you are going to need a computer, some special software, and the USB lead that came with your Iphone, to connect it to the computer. Transferring movies from your existing DVDs to your Iphone is not at all difficult, so read on to find out how it is done. It's worth noting that the computer you use to transfer the movies from DVD to your Iphone doesn't have to be a super hi tech piece of kit-as long as it is able to handle the movie files themselves, which are quite large, it should be fine. It is worth noting though that you will need something that has a DVD drive and a hard drive that is able to store such large files. It's not necessary for the computer you use to be connected to the internet, but you will need a piece of software called a ripper. This basically works by pulling the movie files from your DVDs and storing them to the computer, doing no harm to the dvd itself. In order to download the dvd to your Iphone, you will first need to make sure your ripping software is able to save the movies in MP4 format, which is the only format that will work on the Iphone. Ripping software is usually really easy to use, and as soon as you have done it a few times it will become something you can do without even thinking about it. If you are lucky enough to have a nice modern hard drive with lots of space, you will be able to download the movies in one effort, and then transfer them all at once, saving you a lot of time. As soon as you have all the movies you want on your hard drive, you will need to hook the Iphone up to the computer using the USB lead and switch the pair of them on. After a few minutes they should be ready to go, and you can use the Itunes software to transfer the movies onto the Iphone. It's a very easy process, and again once you've gone through it a few times it should become second nature for you. This article contains all you need to know to let you begin downloading music to your Iphone, so I hope you found it useful for your own endeavours-happy downloading!
As an Iphone owner, you may or may not know that you are able to download free songs from a few different places. You can't have failed to notice the popularity of the Iphone, even though it has only been with us a short while it looks set to be a runaway success, and for good reason-an Iphone can do everything the Ipod does but also give you internet access and a pretty handy cellphone. In order to download any songs at all for your Iphone, you will need to first have some very basic hardware at your disposal. The main thing is a computer and internet connection, as at this time it's not possible to download anything directly to the Iphone from it's own internet connection. As far as specifications go, you will usually be okay with any computer as long as it's not older than say 5 or 6 years, and the internet connection is also not too demanding, though you will find that the faster your connection, the faster you can complete your downloads. The main obstacle that stands in the way of people wanting to download free songs for their Iphone is not knowing where to get them from. You can obviously get the downloads directly from Itunes, which is fine if you want to pay out fortunes for your music collection, but most people don't know there are a few other less costly alternatives. The first, and something that is not at all recommended, is using the torrent sites or peer to peer sites. Over the last few years many people have used sites like this for all their download needs. Unfortunately using these sites is illegal-people actually get arrested and go to jail for it. Aside from that there is also the huge risk of permanent computer damage. Sites like this are not regulated in any way, and so the users can upload anything they want. This makes them a haven for hackers and spammers, and they will often use sites like this to spread their viruses/malware through the internet. These reasons are why it's not recommended to use peer to peer sites as a place to get free Iphone music downloads. Thankfully, there are a few alternatives to sites like these. A new kind of download site has emerged over the last year or so, and these sites are a lot safer to use than the peer to peer sites. The way it works is that the site will charge you a small fee to begin using their service, usually something like $50, and this will usually cover you for life-meaning you get unlimited free downloads for life, as soon as you become a member. This represents excellent value for money, as there are often a huge range of downloads other than music-you can get games, tv shows, movies, and obviously all the music you could want. Hopefully this article will help you get everything you need to download free songs for your Iphone.
The popularity of the Iphone means that you can download themes for it from many different sites-and also you can even download Iphone themes for other kinds of cellphones, and even websites if you are a wordpress user. Your Iphone is one of the most advanced media devices the world has yet seen, with the ability to watch movies, listen to music, surf the web and of course make phone calls, it seems like Apple's research and design department put in some overtime on this one. Even if you aren't an Apple or iPod fan, the Iphone is very hard not to like. Why wouldn't anyone want to have their entire music collection and full internet access on their cellphone? Sadly though, stocks of the Iphone are low due to the sheer popularity of it, so it means many of us will have to wait a while before we can own one. All is not lost though, as you are still able to download Iphone themes for your average Nokia and Motorola phones. If you are lucky enough to obtain an Iphone, you can download something known as a “hack toolkit” which allows you to get into the firmware etc of the Iphone, and change it's theme around etc. You'll find that the themes are available at many different places around the net. When you are looking for places to download themes from, the biggest problem is finding a site you can trust. While it can be dangerous to your computer and your Iphone, due to the nature of the files downloading a theme is generally much safer than downloading a new game or movie etc, especially if you are using a shady P2P site, as P2P sites are known for their lack of safety for users. Having said that, it's very important to be careful and keep your antivirus updated, as shady hackers and users of torrent sites can use fake downloads as a way to make you download trojan software or other things that will open the backdoor of your computer system. This can cause endless problems, it can even ill your computer so it's really worth making sure your antivirus software can keep you safe. If you are smart and use your common sense about what you download and where you download it from, downloading Iphone themes can safe and fun.
If you've been lucky enough to get your hands on an Iphone during the latest craze, the chances are you would like to find some free wallpaper for your Iphone. The iPod has been a runaway success, and Apple seem set to repeat that success with the Iphone. Iphones are so simple to operate and customize, putting some new wallpaper on it is definitely something you will want to look into. If you are online, you'll soon find that the range and choice of what's available for your Iphone is simply amazing. The most popular choice for an Iphone wallpaper at the moment, is something celebrity related. These work very well, as you are now able to store photos on the Iphone and link them to the music, so that when you listen to Kanye West your get to see a picture of him or his latest album cover or whatever. Pretty cool huh? It's possible to find Iphone wallpaper downloads in many different places, everywhere from the big name music retail store websites to small sites set up by independent designers and artists. This is very cool, because it means you can have something very original if you want to; you don't have to have the same wallpapers as everybody else. The main thing you need to remember at all times when downloading or receiving any kinds of files from the internet is to only use websites that you can trust. Iphone wallpapers can be downloaded from many places free of charge, and completely legally, but the legal standpoint does not diminish the risk to your computer and Iphone. It's very important to keep your antivirus and security programs completely up to date, and when you download anything at all, use the antivirus to scan the file before you do anything with it. This is most often achieved through right clicking on the file and choosing the appropriate action from the menu. No doubt that the Iphone is going to run and run with continued success-who wouldn't want to stuff their whole music collection onto their cellphone? So if you have one, or are getting one, don't forget you can make it more fun with some wallpaper downloads.
A download manager is for downloading files, as what the World Wide Web is to the Internet. The world wide web is meant strictly to browse Internet pages and various information. Where as a download manager is strictly designed to download and sometimes, depending on the manager you use, even upload files to a server. The good thing about a download manager is the fact that it has a memory, and can remember where a download came from, how big the file was, and how much of the file you have downloaded in case it has to go back and pull that information back at a later date. When you use Internet Explorer to download files, and your in the middle of downloading a file and the power goes out. You have to start downloading the files all over again, but not with a download manager. As said before, a download manager has sort of a built in memory per say. If your power goes out in the middle of a download, once your computer regains Internet access, then the download manager will go right back to where the download left off and continue on from that point. Also, with a download manager, it puts all the controls right in the users hands. If they are downloading multiple files, the user has the ability to pause certain downloads, to increase bandwidth to the other downloads, and then resume that download when ever the user is ready.