Today I was messing around with some policy settings at a customer site and they asked if I could disable the Windows Cardspace component in the Control Panel, of course I googled around first, but couldn’t find any usefull info, so I started looking in the registry myself, here’s how you do it.

• Start Regedit.exe and navigate to:

HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ policies \ NonEnum

• Create a new DWORD value named {78CB147A-98EA-4AA6-B0DF-C8681F69341C}
• Double-click {78CB147A-98EA-4AA6-B0DF-C8681F69341C} and set its data to 1
• Close Regedit.exe

When you need to disable it centrally (like me) just use the Group Policy Preferences from Windows 2008 / Vista (which can be used on a Windows 2003 domain as long as the policy has been made on a 2008 or Vista machine)