I can't load the softwarelist ROM because of the 7z. I get a black screen on each one. Can you add the 7z support?

Using mess64 without the qmc2 works fine.

Windows 10 Home 64-bit / AMD Radeon RX 5700 XT / AMD Ryzen 7 3700X 8-Core 3.59 GHz / RAM 16 GB