Error Uninstalling CAV 1.1

Hi. I’m attempting to uninstall CAV 1.1 from Windows XP via Add/Remove Programs. I’m receiving the following error:
Error Number: 0x80040707
Description:

When I select OK on that message box I receive another one that just says “Access is denied.”

I found a web site for this error number related to InstallShield and it mentioned some registry entries to look for but all of those entries exist and the paths are valid. Is there anything else I can try to get it removed?

Thanks,
Tripp

You might want to read this:

https://forums.comodo.com/cavs_beta_corner/cavs_11_uninstall_finally-t4755.0.html