I want to make my programs compatible with all versions of Windows from Windows 95 to Windows 8. I'm currently working on a small word processor and I need to have working open and save file requesters. However, I can't seem to get the GetOpenFileName function to work properly. This is the code for a simple bitmap viewer program I made. It runs fine on Windows 98, XP, Vista, and 7, but on Windows 95, GetOpenFileName fails, and CommDlgExtendedError() returns error code 1 (CDERR_STRUCTSIZE). Now, I specified sizeof(ofn) for ofn.lStructSize, which should be valid, and it is on other Windows versi