This tool allows you to run the Steam version of Half-Life 2 and CS: Source instead of the retail one. The Steam version is CD-check free whereas the retail is protected by Securom. You still need a valid steam account.
- Shutdown Steam
- Put hijack_hl2.exe, hijack_hl2.dll and hl2.exe in the directory where steam.exe is installed
- Run hijack_hl2.exe instead of steam.exe