IT Application (Teacher desktop, SPEEDe 2, etc...) won't load

This is concerning current generation IT applications such as Teacher Desktop or SPEEDe 2 (one wrote in .Net) that won't load.

Try deleting the folder 2.0 which is located under C:\Documents and Settings\user\Local Settings\Apps\

After you delete the folder, start the program back up and it should work correctly now.