Question: when I use the line: "g++ sourcefile.cpp -Wall -o objectfile.exe" I am able to successfully compile and run that program on my linux machine. However, I am required to submit my programming projects to my teacher who will test it in a Windows environment. When I move that executable program onto a borrowed Windows computer, it says "Not a valid Win32 application." How may I compile my programs to run in Windows? Background: I am in a software engineering course at my college and I would like to use gcc to compile my programming projects. Naturally, the software created will not be very complex. Thank you, Geoffe Elias __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com