ChangeRes

If you want to change the version information in a .res (resource) file of your Delphi (win32) or C Builder project, but you don't want the hassle of compiling .rc files.

Or you just want to do it in a batch file: use the easy way, use ChangeRes!
Simply do on a command prompt or in a batch file:
ChangeRes Project.res [VERSIONINFO] FileVersion=1.2. 1.*