When it comes to threading, Win32::OLE still has some major issues. There's a webpage on the AS site that lists Win32::OLE as being thread-safe (read it HERE), which should be taken with a grain of salt.

As it turns out, Win32::OLE is only thread safe when "used in a process that hosts multiple Perl interpreters, each compiling their own scripts".

So when it comes to an embedded Perl project I've been working on which utilizes 5.8 threads, I've found that a COM object created in one thread can not be shared (whether by 'cloning' or by explicitly calling share()) with other threads.

I've submitted this bug to the author so hopefully we'll see a new release soon. Unfortunately he has listed it as a simple "Enhancement" request, which I tend to disagree with.

-Nitrox