First, thank you for your answers.
I want to say two important things:
1. The program worked very well till yesterday.
2. I discovered today that I can run the EXE from foxpro (Program/do...).
Anyway, the problem is that I cant run the program by the original EXE (not from foxpro) and I get the message 'Cannot locate to microsoft VFP support library'.
If the above information can help you to think on option to resolv the problem, I will be very happy to know.
Thank you