The "WS" often stands for "WinZip Setup," and "11" refers to version 11 of the popular compression utility.
If you have encountered this file and are unsure of its origin, follow these steps to verify its contents: WSUC11.zip
The identifier does not appear to be a widely recognized public software package or standard system file. Based on technical naming conventions, it is likely one of the following: The "WS" often stands for "WinZip Setup," and