Well thankz for your great answers!! They really helped!

Huhm, I've just already done everything you guys suggested!! Do I have to explane everything I already tried??? So well lets start over....

I catch the error:

Error:2031
Error message: User-interface operation not allowed at this time.
Line of code with error: 600
Line number of error: 9
Program with error: Dos.SelectionExists

In this line:
USE (THIS.SelDir + '\S_Seldef') IN 0 AGAIN ALIAS SelectionExists_Tmp

With the error handler wich I install just above the line above.

I had already catch an error like 'file not found' somewhere else so I changed the current directory in every method I have in my COM object. This error message really seems like a bug because if the line above really can't find the file specified then the error should be catched by my error handler.

Ya guys may not be stupid, but you really did not read my question very well. And I just think ya american people are not so smart in general, but that's because of your stupid elections. I recently voted for something also here in Holland, and we have a much smarter system. I just had to push two buttons to vote, one for my choice and one to confirm it.


Don't mind my english....