I am using 3D Max 2009 and since two day's I can't use it any more. Suddenly for unknown reasons my 3dsmax.exe file has disappeared. I have tried to reinstall 8 times now, even on a external hard drive but the 3dsmax.exe file is simply not appearing in the install. I cleaned the registry and run virus scanner and mallware scanners over the system but still no success. On every try it installs the complete program accept the 3dsmax.exe file. I am completely in the dark on this. Thanks in advance for any help.