On Windows XP, Windows Vista and occasionally Windows 7, the following error may occur when attempting to launch Vectorworks:
"The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log for more detail"
The cause of this problem is either a corrupt or out of date version of the Microsoft® .NET Framework. To remedy this, run Windows Update. This is found under Start > All Programs directly.
If running Windows Update does not offer an upgrade for the .Net framework, it can be manually downloaded HERE.
If after installing the latest versions of these .NET frameworks, the issue still persists, uninstall all of them, then reboot your machine and reinstall them in the order listed HERE. [UPDATE LINK]
Edited by JimW