I have one workstation that will no longer open Solidwork Documents.

The 1st error states:  "There was a problem sending the command to the program" This error has been on the workstation for sometime now, however, it never caused an issue with opening a file.

The 2nd error states: "Unknown Shell Error (1156)" Solidworks is loaded but then crashes.

I've uninstalled the ePDM and Solidworks but to no result.

Suggestions?