I have a version of zonealarm on vista32 that can't be uninstalled due to a bug in that version. I have the script to manually uninstall, but I can't take ownership on any of the files. I seem to remember doing this before, but can't now.
The owner of program files is trustedinstaller. I want to change it to administrators. So far, I haven't been able to do this. Do you know a way this can be changed? Nothing I have found works. I am logged into the administrator account.
After reading your comment on nrhine1's answer, may I suggest Lockhunter:
It will show you what is locking a file and allows to stop the service/process. Unlike other programs of its kind it will not delete the file(s) but rather move them to the Recycle Bin if you wish to restore the file(s).
Lockhunter is freeware, works with all Windows versions, 32-bit and 64-bit.
Of course you can always from an external source that doesn't give a hoot about Windows permissions, e.g. a Linux Live distro!
I just had the same problem trying to remove ZA from Windows 7.
Running the uninstaller from the control panel or using revo uninstaller caused nasty crashes and the forced uninstaller option in revo didnt work either, even disabling ZA startup with msconfig didn't stop it from starting up.
What worked for me was booting in safe mode where I was able to uninstall the normal way from the control panel.
