CLSID Property
From Microsoft Excel Visual Basic
expression.CLSID
expression Required. An expression that returns one of the objects in the Applies To list.
Example
This example returns the CLSID of an add-in titled "Analysis ToolPak". This example assumes the "Analysis ToolPak" has been installed.
Sub FindCLSID()
MsgBox Application.AddIns("Analysis ToolPak").CLSID
End Sub