The 1.1.3.0 update (and its GTA IV 1.0.8.0 equivalent) focused on compatibility with modern systems and bug fixes:
The keyword refers to the first segment of a multi-part compressed archive containing Grand Theft Auto IV: Complete Edition (CE) , specifically patched to version 1.1.3.0 . GTAIV4CE.1.1.3.0.part1.rar
The presence of .part1.rar in the filename indicates that the full game or patch was too large for a single upload and has been split into multiple pieces. GTAIV4CE.1.1.3.0.part1.rar
Need help with GTAIV4CE.1.1.3.0.part1.rar – missing other parts? GTAIV4CE.1.1.3.0.part1.rar