SolidWorks can sometimes crash in 32-bit (x86) Vista environment when trying to create a reference plane, using convert to sheet metal, or using convert entities. The issue may occur if a user has multiple installations of SolidWorks on the PC, and does not follow best practices for installation locations. The root cause is related to .NET Framework which is integrated into Vista. Please download the attached zip file which contains a EXE file that will fix the .NET problem. To apply the EXE perform the following steps:

1. Download ungen.zip from SolidWorks customer portal knowledge base. It can be found in solution ID S-044032 and you do need to be on subscription.
2. Extract the .EXE file to a location which can easily be navigated to from a command prompt
3. Open a command prompt as an administrator (Start -> All programs -> Accessories – right click on Command Prompt and choose “Run as administrator”
4. Use the “cd” command to change to the directory where the EXE was extracted to.  Example: cd “C:\ungen” (if the EXE is extracted to C:\ungen)
5. Type “ungen.exe” and press Enter, then wait for the process to finish
6. When it is complete, start SolidWorks and test to see if the crash is resolved.