Identifying installed updates in win vista and win 7?

In winXP, reading the registry entries at location SOFTWARE\Microsoft\Windows NT\CurrentVersion\Hotfix would give me a list of all installed updates to my windows system.

I am guessing this practise has been discountinued since windows 7 (may be vista too). So how开发者_如何转开发 do I now generate a list of all installed updates? Have they changed the name of the resgistry location? or have they introduced some new method to identify this?

Similar question:

Registry key for Install update and hotfix information on windows 7

Windows Update Agent API will help if you need to do it from code.