SAP Message R1901 - This Version of the Visual Configuration Tool is Not the Current Version

Diagnosis
The installed version of the Visual Configuration Tool is an old currentversion.

System Response
Information

Procedure
A new version of the VCT is available for Release 4.6C Service Pack 01.
The new version is available when you install a new GUI.
See SAP Note 96885 (Getting a Frontend Patch from SAPSERVx).