Error calling normal DLL from COM+ registered ActiveX dll - error 800706be

Hi, I hope someone can help me out with this:

I have a classic ASP application that works fine on older versions of IIS but not on IIS7.

The asp calls COM+ activeX dll's (written in VB6) and I have managed to get everything running fine except for one program where the ActiveX dll calls another 3rd party  non-activeX dll.

At that point, I get "error 800706be".

I'm not sure what to do here - here's what I have tried

• <div mce_keep="true">I thought it may have something to do with permissions so, just to test, I have granted "Full Control" to IIS_IUSRs for the non-activeX dll - That hasn;t solved the problem</div>
• <div mce_keep="true">I know that the COM+ component that calls the non-activeX dll is not the problem because I am able to call other methods in that component without any problems. Then I see the component running in Component Services.</div>

Can anyone help me out?

 Thanks, Nils