Soft Windows 2.0 should not function under Executor because it requires that you have a PPC. There was a version that ran on the 040 processor, but it couldn't do a whole lot. It didn't emulate the PC hardware period, except enough to allow its fixed version of Windows. It did however run it in Enhanced mode. You can't buy this one anymore. However, SoftPC 3.0 should work under Executor because it runs fine on an 040. SoftWindows 1.0 may also work under Executor, but that only emulates a 286, and runs in standard mode.
System Requirements generally are about 12 megs of ram, and a massive amount of hard drive space, IE 40 megs for the system itself.