After installing Endpoint Encryption Server Suite 11.1.3 MP1 by running
SEE Server suite x64.msi, the version shown under Control Panel / Programs and Features is 11.1.3 not 11.1.3 MP1.
This is a known issue with Endpoint Encryption 11.1.3 MP1.
Note that Symantec Endpoint Encryption Windows Password Reset (installed using
SEE Windows Password Reset x64.msi) and Symantec Endpoint Encryption Autologon (installed using
SEE Autologon x64.msi) do correctly show the version as 11.1.3 MP1.