My knowledge about DCOM is rather vague, but as nobody has yet given an answer to you, maybe this could help you...
If it something like OLE, you could access it with the Perl-Module Win32::OLE. If it is a method or the like in a .dll, you could propably access it the Module Win32::API

But maybe, there exists just a module which is easier to use. What do you want to do?

Best regards,
perl -le "s==*F=e=>y~\*martinF~stronat~=>s~[^\w]~~g=>chop,print"