A free compatibility list for Windows compatible operating systems https://www.ntcompatible.com/compatibility/ 5 2007-02-13T23:15:27+00:00 Half Life 2 1/compatibility/report/half-life-2/ Valve Valve Games/Action Windows Vista 32 Bit, Windows Vista 64 Bit 2007-02-13T23:15:27+00:00 Anonymous Windows Vista 32 Bit 5 Have no issues with Vista (32-bit) and Half-Life2. I'm just curious to why people are running 64bit? There is no apparent benefit of running Vista in 64bit mode. I found this (among others) when deciding which version to run with: http://www.geekpatrol.ca/2006/12/32-bit-vs-64-bit-vista-benchmarks My Main System Components Core2 Duo @ 2.4 GHz Asus P5N-E SLI motherboard Dual BFG Geforce 8800's in SLI Sound Blaster Fatal1ty https://www.gnu.org/licenses/lgpl-3.0.html 2007-02-13T23:15:27+00:00 Anonymous Windows Vista 32 Bit 5 Runs great https://www.gnu.org/licenses/lgpl-3.0.html 2007-02-13T23:15:27+00:00 Anonymous Windows Vista 64 Bit 4 Steam seems to work without any issues. The game itself didn't launch on 64 bit environment, but after adding the -32bit switch to the launch (or shortcut) parameters, it started without problems (didn't test much on to the game). This seems to be more of a native x64 issue (related or unrelated to Vista 64), that according to some forums just appeared with the recent HL2 updates. Vista handles security (and automatic measures for virtualizing the secured locations) differently for 32 and 64 bit native applications, which may also lead to the issue being Vista related. Regardless, the -32bit switch made the thing work at least for me. Kallex https://www.gnu.org/licenses/lgpl-3.0.html 2007-02-13T23:15:27+00:00 thomsonr Windows Vista 64 Bit 3 Loads fine but I have strange issues with video. Haven't tried any type of compatiblility modes yet assuming it is possible. My computer configuration: AMD X2 3000+ 2GB Ram ATI XL800 Asus MB https://www.gnu.org/licenses/lgpl-3.0.html 2007-02-13T23:15:27+00:00 stonebullet Windows Vista 64 Bit 1 Does not work. Causes Steam to crash. https://www.gnu.org/licenses/lgpl-3.0.html