Decompile, change & recompile an EXE

[Brandon]

Hi,

Need some help with a project. got two EXE's don't know what they're originally coded in - need to decompile them & compare code.

What software can you suggest that can:
1) find out what language they're created in.
2) decompile & compare code.
3) after changing the code, recompile it

Appreciate any help!

 

[andres101]

a hex editor might give you a clue as to which language it was coded in. you could also try something like http://www.dependencywalker.com/ to see which files it depends on. If for instance it depends on the VB6 runtime, then you know it was probably coded in VB6.

As for de-compiling it... If it is byte-code , then you should be able to decompile it. If it is compiled to machine-code, you will probably not be able to decompile it to anything a normal person could read.

What exactly do you want to change in the code? It might be possible to just modify the executable.

 

[Brandon]

Thanks, did some poking around - looks like it's in C+(+); not worth the effort to work with assembly code!

Thanks for the help though.