So, even if they just delete the directory and don't do an uninstall. HKEY_CLASSES_ROOT\Excel.Application will report correctly and I don't know what I'm Talking about. Is that about it. :)

Jeff
>>(this isnt necessarily for Erik, I just picked somewhere near end)
>>
>>So ok, < smirk >
>>Now that I found the additional wizards (amazing what you can see when you actually extract xsource.zip).
>>
>>And we've all determined I'm NOT talking about the general VFP app wiz (heee heee heee... never knew being braindead was contagoius!)
>>
>>And I've played with the guts of the pivot wizard half the night (ya know there is a really neat class definition for oPivot objects that could be extremely useful to build a semi-dynamic reporting app)...
>>
>>What the easiest way nowadays to verify Excel is installed on the user's machine before launching an external app like this to do it's thing? Check the reigstry?
>
>HKEY_CLASSES_ROOT\Excel.Application if it's there, it;s there and you can launch an Excel sheet via ShellExecute() or something like Shell.Application's Open method.