You appear correct, you *cannot* access arbitrary COM interfaces, only IDispatch with Win32::OLE.

You should check out CreatePerlObject/ReleasePerlObject in OLE.xs 

return sv_2mortal(sv_bless(newRV(INT2PTR(SV*, SvIV(*svp))), stash));

[download]

Win32-GUI-AxWindow and Wx-ActiveX also seem relevant

CreatePerlObject site:perlmonks.org:
Creating COM and DCOM objects with Perl
Win32: Get COM object (for IE in this case) from HWND

In reply to Re: Internet Explorer Frames - Win32::OLE by Anonymous Monk
in thread Internet Explorer Frames - Win32::OLE by TheDauthi

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