They're on about the pc version hence net framework. And you should be able to find older versions on github. I'll have a look and post my findingsDo you have cfw? I bypassed this by just using the old version of PKHex for all my Pre-Gen 7 needs and PKSM for all my Gen 7 needs.
I meant the PC version. I use PC PKHex for Pre Gen 6 and PKSM for Gen 7.They're on about the pc version hence net framework. And you should be able to find older versions on github. I'll have a look and post my findings
Added: I didn't read the op properly. The only way to get the newer version to work is to update the .net framework or run a virtual machine.