Navigate to the game's installation folder (usually under SteamApps\common\Prince of Persia ). Go into the Files or Bin folder. Locate Prince of Persia.exe (the actual game client). Right-click it and select . Compatibility Mode

Navigate to your game installation folder (e.g., SteamLibrary\steamapps\common\Prince of Persia\ ). Open the folder named VCRedist .

Verification: This is the step that 90% of online guides miss. Without this ATL update, the launcher will still throw the side-by-side error even after the standard install.

"Side by Side," Elias whispered. The forum post title echoed in his head. Launcher Side by Side Error Verified.

Verification method

Open SxsTrace.txt and look for "ERROR". It will list the exact version number of the C++ library that failed to load. Alternative Solutions Disable the Launcher