Navigate to where you extracted the Usttad Portable files.
If you are editing files and they won't save, ensure you are running Notepad as an Administrator . unlock all mission in igi 1 game usttad portable
If the game crashes when selecting a later mission, right-click IGI.exe , go to Properties , and set compatibility to Windows XP (Service Pack 3) . Navigate to where you extracted the Usttad Portable files