Interesting - every time, when I'm modifying schema there is a gap when I can't see changes from perspective of tools. For example - I'm adding new attribute and this attribute will be available after a small gap - 5-15 minutes before it will be available. Is it Schema Cache?
Or maybe Schema Management Thread (ntdsai.dll)?
After hide of one of attributes in Powershell I can still query for this attribute and magically - after 5-15 minutes it just disappears...
Dim root
Set root = CreateObject("FPC.Root")
'Declare the other objects that are necessary.
Dim array ' An FPCArray object
Dim settings ' An FPCLowLevelSettings
' Get references to the array object and to the low-level
' settings object.
Set array = root.GetContainingArray
Set settings = array.ArrayPolicy.LowLevelSettings
WScript.Echo "DNS cache settings:" & vbCrLf & _
" TTL of entries for unsuccessful lookups: " & _
settings.DnsCacheNegativeTtl & vbCrLf & _
" Maximum size of a single record: " & _
settings.DnsCacheRecordMaxKB & vbCrLf & _
" Maximum size of the Firewall service DNS cache: " & _
settings.DnsCacheSize
The following VBScript code sets a new value for the DnsCacheNegativeTtl property: ' Create the root object.
Dim root
Set root = CreateObject("FPC.Root")
'Declare the other objects that are necessary.
Dim Policy ' An FPCArrayPolicy object
' Get an array policy object and set the new value of the
' DnsCacheNegativeTtl property of the low-level
' settings object.
Set Policy = root.GetContainingArray.ArrayPolicy
Policy.LowLevelSettings.DnsCacheNegativeTtl = 7200
Policy.Save
WScript.Echo "Done!"