and again:

try this tool

http://www.diamondcs.com.au/cleanrun.reg

and doubleclick it; try both safeMode or ;)normalBoot

cleanrun.reg contains the following “good” entries for starting programs:

REGEDIT4

[HKEY_CLASSES_ROOT\exefile\shell\open\command]
@=“"%1" %*”

[HKEY_CLASSES_ROOT\batfile\shell\open\command]
@=“"%1" %*”

[HKEY_CLASSES_ROOT\comfile\shell\open\command]
@=“"%1" %*”