In which case, I'd suggest you download and install a virtual machine like Oracle Virtual Box, install Ubuntu 18.04 and compile your own version of libsecp256k1-0.dll... it isn't overly hard and doesn't take a lot of grunt... My Ubuntu VM only has 4 Gigs of RAM assigned to it... and my host machine is Windows10 with 8 Gigs total (and a very old i5-3570k).
Hell, you could probably even try installing the Windows Subsytem for Linux... run "Ubuntu" using that and compile the libsecp256k1-0.dll there. I might even test if this is possible if I get bored enough