MOF edit for .net framework versions
If you support Vista, or need to know if .net version 3.5 beta is installed, the attached MOF edit will help. It will report on installed for .net versions 1.1, 2.0, 3.0, and 3.5 (beta). Since 3.5 is in beta, it's possible the mof may not report 3.5 correctly once it's officially released.
Note this MOF edit will NOT help you determine if you need hotfixes for .net framework; you will still need ITMU or WSUS.
In the attached zip are 2 mof files; 1 is the mof snippet to be added to your mini.mof (or sms_def.mof), and the other is 3 reports which could be imported for reporting. The 3 reports are designed so they could be linked together.