Disable SAP Logon-Based Update of SAP GUI ?

Hello,

I know how to do that interactively (right mouse button->Configure Update-Check), but:

I want to use installation server for installations and SAP Logon-Based Update feature is enebled by default, since I'm planning to use Automatic Workstation Update I want it to be disabled after installation.

How do I do that ?

At least some registry hack I could add to installation server events ?

thnks

Vilius