in reply to SOLVED: Info from Outlook Global Address List
It varies probably since I'm not using the API correctly. Reference https://msdn.microsoft.com/en-us/library/office/ff868350.aspx for example:
$namespace->AddressLists->Item("Global Address List")->AddressEntries( +"Lastname,Firstname")->PropertyAccessor->GetProperty("0x007D001E"); [download]
will give me a "Use of uninitialized value in printf ..." in my printf statement in the code from the OP.
Part of the issue is I'm trying to adapt VB, C#, etc.. any code example I can find really - into Perl Win32::OLE.