Word VBA problem opening document outside of my application.

[pareshtrivedi]

In my application I have used VBA scripts to open word documents.
The problem is if word document is opened from outside of my
application, instead of system creating a new winword.exe it hijacks
on my application. So the newly opened document shows up in my
application. If user closes that document it kills my word session.
How do I stop this happen? Also, this does not happen consistantely.
When I create word application object in my app, can I somehow
indicate that this winoword.exe is exclusively for my app?

Thanks