Hello Sylvain, Thanks for your reply, this is all I did: 1.- Deleted all temp files to see if one temp might affect the performance of the application. 2.- I did delete all cookies and Internet Temp files in order to verify that a spyware might be affecting my application. 3.- I did kill some processes at the TaskManager and it didn't work. 4.- I did checked the PSF and BAT files at the BIN directory and compare those files with the files located on another PC and everything was fine. 5.- I did run the Norton just to verify that an spyware might be present on my PC and it didn't work. 6.- I did restart at the services, the "APPLICATION LAYER GATEWAY SERVICE" in order to verify that the network might been affecting my application. 7.- I un-install ProE and remove everything from the registry and reinstall it and the problem remains. That's the last thing I did and still have the problem. Thanks again for your reply and I'll keep in touch.