DllCanUnloadNow for dlls/msi

[Christian Gmeiner]

Hi all.

I want to start coding for wine and therefore i have wirtten my first 
patch to add DllCanUnloadNow
to msi.
Now i need to test my patch. I have got the hint that i must create a 
COM object that msi.dll provides.
Then the following must happen:
try calling DllCanUnloadNow, and it should fail
then ->Release() the object, and DllCanUnloadNow should succeed

Can somebody give me some links or maybe a litte source to make such a test?

Thanks,
Christian