We can use a hash to tell apart two game.exe's right?
http://www.damn.to/software/hashcalc.html
SHA-160 : D469BD9F56127C55163E94FD6346AA35A2E58CEF
SHA-256 : FA36DB94D2FFBDF33C2198472142EAF798DB83AF74EC76B445F34C9107AA8D16
SHA-384 : BE9F67ED92A78DC547E2BC2880DCE25B17A8A642BADC019F8B23DD3C29BA98AEA8B7457841102679B40F126183350847
SHA-512 : E516447907C0363BBBDDB7EA9C233A2D20FDDEDC707650DA0583494A267EC022349F7228AFFC8ACE4E9A037679A911A9E68E3AA3CD727C994A4A8FE8FA0103BB
MD5 : 8207DFCD9B83BB4ACC10737B48CF5636
RIPEMD-160 : 55B667F61F36E1BF164D373B3C1850DAF4E21E35
HAVAL-3-128 : 27F36DFEF42CF75AC6A11D44989CD4B8
HAVAL-3-160 : 82C3DEAB21576329AF5376171DD8D9C261996143
HAVAL-3-192 : 3F4701D630F113208CEBD70FB2768CFE2C96A62981F35A28
HAVAL-3-224 : F8983A3C238FEC8CB341E7BD3B9587836F7CBAD514C0357A54E8EE4F
HAVAL-3-256 : 3DF47DFFA9BCFC26AEA4DC7A07C2904759F41C1B7D7679C5F21DD3C997DEC24E
HAVAL-4-128 : E2D2AC1E1496D3B5FF55DC9C965BC676
HAVAL-4-160 : 253660B61DCE7FBFC18355199E66B724A3D37137
HAVAL-4-192 : 3672F80EB443AEC7EF8DC911DA44263E54D595BC54316F6C
HAVAL-4-224 : 9A3708E01EBED113ABFF207473E435F0919E360579C9EADC577B11A2
HAVAL-4-256 : 176F84CB8FA1DA44811AB23A806491AEC61B72EB07B6D4A6F9B517B56115EB2C
HAVAL-5-128 : 025FDB9FF24F99CCA1D711D7B2082072
HAVAL-5-160 : 1D71CACD79608B4A42C6B79F0DA865FA4A980CBE
HAVAL-5-192 : 0414DCEFF0095F6399F11D8A2FF1421EACD95B9873D82ED7
HAVAL-5-224 : DC993C27588E2FB9F6BB84345AEAA0AFEAD5B379F5A73BE8C88C7B49
HAVAL-5-256 : B13356DADC7A23DFCE0F3EE92AF3D6471B2E5D2268EF3901608C0F85F3AD7C2B
CRC-32 : C0AFBBDF
If it is different to the one I have, then I can send you my version.