Database Software

I have a Pocket PC app that works with 9iLite. Up to this point whenever I want to sync I shell out to the mSync utility. It works, but tends to lock up the system for awhile and gives the user to many options. I would rather use the Mobile Sync API from within my application. How can I use it from embedded Visual Basic? How do I define and access the ocEnv structure buffer from my VB program?

Any insight would be greatly appreciated.