How do I get a list of installed updates and hotfixes?

Question

A list of every update and hotfix that has been installed on my computer, coming from either Microsoft Windows Update or from the knowledge base. I need the ID of each in th

Answer 1

You can use IUpdateSession3::QueryHistory Method.
The properties of the returned entries are described at http://msdn.microsoft.com/en-us/library/aa386400(VS.85).aspx

Set updateSearch = CreateObject("Microsoft.Update.Session").CreateUpdateSearcher
Set updateHistory = updateSearch.QueryHistory(1, updateSearch.GetTotalHistoryCount)

For Each updateEntry in updateHistory
  Wscript.Echo "Title: " & updateEntry.Title
  Wscript.Echo "application ID: " & updateEntry.ClientApplicationID
  Wscript.Echo " --"
Next

edit: also take a look at http://msdn.microsoft.com/en-us/library/aa387287%28VS.85%29.aspx