upgrading from 32 bit os to 64 bit os

I'm looking into making the upgrade to 64 bit os. I'm running programs that require Hardlock dongles Fast E-Y-E (luna asic). Easy emulating these in a 32 bit environment. I'm looking for information on getting around the driver signing requirements of Windows 7 and converting my 32 bit drivers to 64 bit. I dug through some forums and found that people are using Multikey for this and various other tools. That is what brought me to this forum. Most of the links to different tools that people have posted are broken. So is it worth the hassle of upgrading to 64 bit? Or should I stay with Windows XP?

for both versions Registry file is same, just change multikey files only

Thanks Nodongle. I did get it up and running. It took me two weeks to modify the old hardlock.sys for the 32 os. All the work was done for me this time

I need help to use Micromine in Windows 7 64 bit.
It was working well with Windows XP and Windows 7 32 bit with crack.
But, it won't work in Windows 7 64 bit.
What should I do?