as long as the error exists, I would advise against this product
Update:
It is possible to install under WinXP the game, but only on the "masterar.exe" which is located on the DVD. Then you can just copy the folder installed on a Win7 / Vista PC and start over Lan. It is also possible under Vista / Win7 32-bit to install when you boot up in safe mode and then the setup.exe as an administrator performs.
however still very poor performance on the part of software Pyramid / WB Games / Monolith / Time Gate