I am unable to set Ifilter debugging on Vista as per these instructions.
I used regedit to set
HKLM\Software\Microsoft\Windows Search\Gathering Manager:Debug Filters
to 1
, but when I click OK, I get this error :
Cannot edit DebugFilters. Error writing value's contents.
I tried changing the permissions on the registry branch -- it does appear to be a permissions issue. The Administrators entry has "Special Permissions" checked, and the "Read" and "Full" greyed out. However, I can check them but when I click OK to save that change, I get this error:
Unable to save permissions on Gathering Manager. Access is denied.
I found the answer. You have to right-click the registry branch "folder", choose Permissions, then Advanced. On the Owner tab, set yourself as the owner. This lets you change the permissions.
Details: http://www.tjitjing.com/blog/2007/02/regedit-cannot-create-value-error.html