v3Ry N1ce w0Rk Louthrax!! 
You must add SofaRun and OPFXSD to the path. OPFXSD is in the path by default after booting the ROM Disk.
Type from command line (or make a .BAT file) with:
PATH A:\;A:\BIN;B:\SOFARUN (or whatever path you need)
You don't need patched versions of Game Master 1/2
Thanks Guillian, the PATH did the trick (COMMAND2.COM version 2.31 or higher) 
Thanks Louthrax for this nice tool!
Sorry guys but I'm having real trouble with Sofarun 
Is there a guide or tuorial anywhere on how to get it setup and running?
I have the MegaFlashROM SCC+ and a JoyMega Adapter and was hoping to use Sofarun to loads games up. I think I'm doing something wrong though as I can only get 16kb games (nothing bigger) to load. Here's my setup:
Philips VG-8235 MSX2
MegaFlashROM SCC+ with 2gb SD Card
SD Card Layout:
B:\ROMs (All the games in here)
B:\Sofarun
Once the cartridge has loaded, in Nextor I change the path with H key to go to B: and then find Sofarun and load it. When loaded I choose a game and press start, and then each time a large ROM is loaded, it does this:
After hitting any key Sofarun quits and I'm back in Nextor :(
Looking in the settings screen of Sofarun too, I noticed that the available memory is only 28996, which might be why I can't load any larger games :(
Does anyone know where I'm going wrong? Any help will be greatly appreciated. I just want to use my MegaFlashROM with Sofarun so I can enjoy games really easily.
Hi Cauterize,
Your problems seem caused by the fact that you are launching SofaRun from MultiMente. That makes a tricky-combo for MSX-DOS (SofaRun is launched as an external problem, then OPFXSD.COM is launched from SofaRun as an external program too !).
Try to exit MultiMente and go to pure MSX-DOS 2 and just type "sofarun", tt should work well. Next version of SofaRun will use a different mechanism for launching external applications, maybe things will work better then.
Looking in the settings screen of Sofarun too, I noticed that the available memory is only 28996, which might be why I can't load any larger games
This bytes free indication is only related to the memory available for the file browser to display&sort file names (SofaRun should support directories with +/- 2000 ROMs). It it not related at all with your flash device or memory-mapped memory, I think I might remove this indication as it is a bit confusing.
Absolutely fantastic, thank you so much for your help. Quitting out of MM (or what I was calling Nextor, oops!) definitely does help. I've been able to get a good few games working now.
I followed your guide above to to make a BAT file to load everything I need too:
PATH A:\;A:\BIN;B:\SOFARUN CD SOFARUN SOFARUN.COM
Is there any way I can edit the main AUTOEXEC file to boot straight into Sofarun instead of MM when I use the cartridge, and get everything set up with the PATH stuff so I can just get gaming? Chances are I'm never really going to use MM really as the MegaFlashROM was bought purely for gaming.
And just for the record too, Sofarun is exactly what I was hoping for when I bought my MegaFlashROM about a year ago. The system definitely needed a great ROM loader, so kudos for what you've done and keep up with it.
Is there any way I can edit the main AUTOEXEC file to boot straight into Sofarun instead of MM when I use the cartridge, and get everything set up with the PATH stuff so I can just get gaming? Chances are I'm never really going to use MM really as the MegaFlashROM was bought purely for gaming.
Well, the question is in your answer ;-) Just put the code you mentionned into AUTOEXEC.BAT and that's all !
And just for the record too, Sofarun is exactly what I was hoping for when I bought my MegaFlashROM about a year ago. The system definitely needed a great ROM loader, so kudos for what you've done and keep up with it.
Thanks, glad to see SofaRun makes MSX gaming easier !