With an EMS cartridge, iirc on Windows 8 or Windows 10, you can allow unsigned drivers to be installed opposed to running Windows 7 in "Test Mode" to transfer stuff in and out the cartridge so the GB_USB should work without an issue.
Drag'n'Derp also works very well if you don't want to mess with drivers.
The BennVenn linker is really cool for transferring GB Camera photos (and other saves) on the fly if you don't have that Mega Memory cartridge. Though with the BennVenn cartridge, I tend to have a difficult time loading up LSDj; sometimes the rom itself goes haywire when I'm switching between screens (i.e. song slows down, stops playing, glitchy noises). So I gave up, loaded up Beatmania GB, left it as is and decided to stick with my Bleep Bloop and EMS cartridges for making stuff on LSDj.