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System: Windows XP, 32-bit, 4GB ram, Core i5 KSP version 1.2.2.1622 (Fresh install) Graphics settings: Normal Problem: KSPedia crash in VAB. Constant crashing during Revert Flight. No problems during flight. Error reports: 73% memory in use. 3542 MB physical memory [932 MB free]. 0 MB paging file [0 MB free]. 2048 MB user address space [106 MB free]. Write to location 00000000 caused an access violation. Solving the problem: Tried lower graphis settings, no effect Tried to limit affinity, no effect Tried DEP option (NoExecute), no effect Tried PAE option, no effect Tried 3GB option, problem solved [boot.ini] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional 3GB" /fastdetect /NoExecute=OptOut /PAE /3GB Side effect: Windows desktop 2D hardware acceleration not working any more. Launcher.exe does not start (Failed to initialize Direct3D). Question: Because I can not use this 3GB setup in normal use due to side effects, is there any other options to try to minimize memory consumption below 2GB, which seems to be the standard upper limit for any 32-bit software? Maybe you should add this option also to the topic 83211-known-issues-amp-self-help. More info: Later I tried option -force-opengl in 2GB mode and got immediate crash. In 3GB mode it seems to run OpenGL because 3GB option disables Direct 3D.

I am using ckan to install my mods, and these mods work fine in 32 bit, so i assume it's not them that are causing the problem. However, when I click ksp_x64 in the ksp directory, the game loads and a pop up (presumably from module manager) tells me that all my mods are on an "unsupported version, (please use 1..0.5)". I don't understand why the version is unsupported in 64 bit, but fine in 32 bit bare in mind that even when I launch 32 bit from the directory it still works fine, and it also works when I launch it from ckan, I haven't worked out how to launch the 64 bit from ckan, so I can't test that. any help is much appreciated, if you need any additional info from me that will help you understand the problem better, let me know what info you need.