Building a Game Patch with Visual Patch 3.5 (Windows XP)
Prepare Your Game Files
Have two versions:
Original release files
Updated (patched) files
Visual Patch compares these to generate patch data.
Create a New Patch Project
Open Visual Patch 3.5 → New Project.
Enter project details (patch name, version numbers, publisher info).
Add Old & New Files
Specify the original game files (old version).
Specify the updated files (new version).
Visual Patch will automatically calculate file differences.
Configure Patch Options
Add license agreements, messages, or branding for your patch installer.
Decide whether to enable rollback (so users can revert to the old version).
Build the Patch EXE
Compile the project → Visual Patch generates a self-contained .exe patch.
Test it on a clean XP machine with the original game files installed.
Distribute the Patch
Share the patch EXE with players.
When run, it updates their old game files to the new version.
Note:
Visual Patch 3.5 is very old (2007-era). For modern systems (Win10/11), tools like Patch My PC, ClickOnce, or custom patchers with C# / Inno Setup may be better.
Always backup game files before testing patches.