Hello,
I too experienced this with FSX-SE. I spent some time looking for the cause. I was thrown by the error, thinking it had something to do with the Creative sound card I had removed some time before. I had however uninstalled all components.
In my case, I tracked it down to the auto update features within FSDT's GSX. I cannot be sure this is the real cause, but I do know it did not occur when GSX was not installed and I could produce a similar problem by asking GSX to check for an update. Investigations also pointed to the faulting file being from a supplier providing auto update functionality. I have never had this problem with FSX Boxed edition.
For me, this was the last straw and I uninstalled FSX-SE and restored my trusty boxed edition.
Regards,