When i try to install any program which has a 32-bit InstallShield setup.exe, Nothing happens. Then i look in the Task Manager and a "ntvdm.exe" has loaded with "wowexec.exe" and "setup.exe" as subprograms. I gather that ntvdm is the Virtual DOS Machine which is needed to run 16-bit proggies on a 32-bit OS. So why is it loading up for a 32-bit installer, and how can i stop it?? NB... I have replaced all the files that are part of the VDM with ones from another working machine on the same Service Pack! Still doesn't work, Wierd eh? Please can someone help, really desperate cos i can't install most programs. Thanks

Could be corrupted. Try doing a system file checker. Start run type in cmd make sure xp disk is in at the prompt type exactly with the space sfc /scannow That should help if not you may have to do a repair or a system restore. Good Luck

Well i gave that a try, but it doesn't seem to help. I guess i'll have to give the repair a try, if not a clean install! Unless anyone has any other ideas??

you could try a system restore. or try a diferant copy of the program your trying to install