The name of the VS Help page where you could plug/unplug collections from VS help was this in VS 2003
In VS 2008 (v9) help... Still called Collection Manager but now has a GUID for a filename.
* Collection = MS.VSCC.v90 -- Title = "dv_vscccommon"
If I open help.. In the Index tab is an item "collection manager, Help" that takes you right to that page.