I cant run System Restore anymore on my computer. The window does appear but nothing is visible within it. I cant even go back to a previous restore point because the utility does not work anymore. What can I do? I use Windows XP Professional.

This sort of problem might bebecause of a damaged Java script file. You will need to re-register the necessary DLL files. Click on Start | Run and type, regsvr32 jscript.dll Click on Ok. Run the same command for the file " vbscript.dll ". Each time you register a DLL
file you will get a confirmation. If you still get an error, then you will need to replace the files with the ones on the Windows XP CD.

Place the CD into the drive and click on Start | Run and type " cmd ". Click on OK. Enter the following command, replacing " X " with your optical drives letter,
expand X:\i386\JSCRIPT.DL_ -r C:\windows\system32

Press [Enter]. Now type the same command
replacing the file to be extracted from the
CD, expand X:\i386\VBSCRIPT.DL_ -r
c:\windows\system32

If the System Restore screen still appears
blank then click on Start | Run, type
" regedit " and click on OK. Navigate to the
following folder (key) in the Registry Editor,
HKEY_LOCAL_MACHINE\SOFTWARE\
CLASSES\CLSID\{f414c260-6ac0-11cf-b6d1-
00aa00bbbb58}\In procServer32

After clicking on " In procServer32 " make
sure the value for Default is "C:\
WINDOWS\SYSTEM32\JSCRIPT.DLL ". If not,
right click on Default and select Modify.
Change the value to the path mentioned
here and click on OK. Also make sure the
" ThreadingModel " has the value " Both ".

Now, go to the following folders and carry
out the same tasks as you did above.
HKEY_LOCAL_MACHINE\SOFTWARE\
CLASSES\CLSID\{f414c261-6ac0-11cf-b6d1-
00aa00bbbb558}\In procServer32
HKEY_LOCAL_MACHINE\SOFTWARE\
CLASSES\CLSID\{f414c262-6ac0-11cf-b6d1-
00aa00bbbb558}\In procServer32

Close the Registry Editor and restart the computer.