error 429 after registry modification

[fems]

- Sorry for bad English -
When I am using the createobject statement from my .xla to create a reference to my ActiveX exe, error 429 will occur. This error only occurs when i run code that modifies the registry prior to the createobject statement. What could be the problem?

[TheBao]

You don't have administrator priviledge.

[fems]

could there be another problem? (i am using the administrator account)
thanks