Setupip fails if Windows Messaging is not present on Client

Just upgraded to GW 2012 on OES11.

Setupip works fine for clientupdate (perv. version 8.02). Deploying Groupwiseclient on computes (win xp (sp3), win7 (32), win7 (64)) without older Groupwiseclient fails, if Windows Messaging is not installed.

On executing Setupip.exe (with administrator privileges) an error message appears: SetupIP is unable to copy Setup-Files. Contact Systemadministrator.

Setupip.err shows: HTTP-Error copying file setupip.fil. (110)

If i manually install wms.exe setupip works fine. How does wms affect downloading files by setupip.exe?

Anyone know this probelm?

Thanks