editing an exe file

Hi,
Is it possible to edit an exe file in vb or similar?

 

Short answer: No

Long answer: You can get a hex editor to tinker with .exe's, but you'll find there's little you can do. If you have the original source code and correct languages installed, you can compile a new .exe to be what you want.

 

The problem with using a hex editor is that you cannot change the size of the executable, except for in a few cases if the file is less than 64 kb. For example you can edit Win98's Explorer.Exe so that it says "Breaking Windows 98" instead getting the "Starting Windows 98" message on bootup. "Starting" and "Breaking" have the same amount of letters, so the file size stays the same.
Oh, just to save you some time, if you decompile an executable, you won't end up with the source code.