Allright, first make sure the md5sum.exe is in your same directory as the files you want to check.
To get to the dos prompt:
1. click on start in windows.
2. click on run in the start menu.
3. a new box will appear. Here it depends on what version of windows you own. If you would own say Windows 98 you would have to type: command
For Windows XP it would be: cmd
Now a black window should appear with a blinking cursor after your current path. That is the command prompt.
Right, now you need to reach the directory where you downloaded your install files to. You probably know where they are located. To get there you may have to change partitions. To do this you type the partition you would like to go to (ex. c, d, e) and after that you insert a :. So if you would like to go to the c partition (if you aren\'t there allready) you would type c: and press Enter.
After you are at the correct partition you need to get to the right directory. Say you downloaded your files to the directory Install. The procedure to get there would be as follows: cd install (cd stands for Change Directory). If you need to go back one directory you can type cd.. or to go to the root cd\\
After you\'ve reached the directory where you need to be (you can check what files are in your current directory by typing dir in the command prompt) you need to execute the md5sum.exe program to check your files. To do this in the example we have been using you would type: C:\\Install\\md5sum.exe psv0.2.010.part1 (without the C:\\Install\\ part. That is just to show you how your path would look like in our example). Do this for all the files you wish to check.
You will get a large row of numbers. You can check this number with the one on the site, if it doesn\'t match you know the file is wrong.