by WebbPA » Wed Jun 08, 2005 8:44 am
It depends on they type of file, .gau or .cab.
.cab files are easier to work with because they are just .zip files and WinXP can open them without a .zip utility. Open the .cab file, edit the .bmp file, zip it back up and hope it works.
.gau files are more trouble. They are written in C and contain the bitmaps and code in one file. There is a utility called gaubmp2 that claims it will let you edit the .bmp files within a .gau file but I have only used it for viewing and not for editing. If you can't find a copy let me know and I will email one to you.