iphoneinterface Problem

I am trying to use "iphoneinterface" to deactivate my phone but keep getting folloing message:

Problem starting AFC -402653150

Any ideas?

My iphone was activated originally using "dvdtoiphone.net " method.

Any help would be appreciated.
Thanks

When I see that a power cycle of the phone usually fixes the problem, you could try another tool. iphucwin32 is available on http://iphucwin32.googlecode.com

Why deactivate, just do a full restore from iTunes