>>Mismatched pushjmp/popjmp call.
>>
>Did you find a solution to this problem? Are you using project hooks? What version of VFP are you using? Have you applied the latest service packs for your version?

The "solution" so far is to uninstall the program, so that's not a real solution of course.

The installed program was compiles in VFP 7 SP 1.

For development I have installed VFP 6 SP 4 and VFP 7 SP 1.

The error occurs in both versions. I use project hooks in the VFP 7 projects, but not in VFP 6 projects.
It seems to me that the error occurs when editing classes or forms that I created in VFP 6, regardless whether I use VFP 6 or 7 for the editing (I have some projects moved to VFP 7 lately).

It did not happen yet with classes or forms that I created in VFP 7. It happens in one class, but not in another class, while they are in the same class library.

The same error occurs when running an executable compiled in VFP 6.

>I did a search on the MS KB site for the error and found a few links you might want to look at, if you haven't already:

Thanks for your info. I haven't found too much time looking at it, but I will keep you informed.

>I for one would be interested to hear how this turns out.

Thanks a lot for your help so far!