Adding Scripting.Disctionary object in registry

Accessing a Scripting.Dictionary object as part of your QTP and can get the intellisense

HKEY_CURRENT_USER\Software\Mercury Interactive\QuickTest Professional\MicTest\ReservedObjects\

There you’ll see many of QTP’s internal object. DO NOT MESS WITH THEM.
Next, create a new key, with the name of the reserved object (e.g. Advanced QTP)


Enter the key "folder", and create these values :
ProgID (string) - Holds the COM program ID we want to create (e.g. Scripting.Dictionary)
VisibleMode (dWord) - Holds the value 2. This controls the auto-complete and intellisense appearance.
UIName (string) - The name that will refer to the reserved object. Make sure this is the same as the key name.

http://www.advancedqtp.com/knowledge-base/articles/qtp-tricks/qtp-hacks/reserved-objects-as-an-env-object-replacement/

Refer the above link for more details. Thanks to Yaron for his help in advanceqtp.com