Invoke TestComplete instance through Excel Macro

I am trying to invoke a test complete instance through an Excel Macro using the code:



Set TestCompleteApp = CreateObject("TestComplete.TestCompleteApplication")

or

Set TestCompleteApp = CreateObject("TestComplete.TestCompleteApplication.10")



And getting the following error while execution:



 "Runtime Error  - 429

Active-X component cant create object"



Refer attached screenshot.



Kindly suggest.