Okay, (I just shared my experience)...

But creating a RAM drive is very OS-dependant thing, and most OSes do not allow that... I can't imagine how ramdrive could be created on any of Win32 systems. (Yes, I imagine it is possible for Win95 after some fight with config.sys and rebooting, but this is way harder than creating just temporary directory via standard modules).

OTOH initially you asked how to load your program into memory - I can share my vision on this. If your program needs something more (what is it, namely?) then there should be another way to cache that data (or part of it) into memory, using similar approaches.

Courage, the Cowardly Dog
things, I do for love to perl...