I use VM images. I had one image with Win7x64 and installed Emulate v32. I couldn’t get things to work. I used an image with Win10x64 and installed Emulate v32. This worked using both processor versions of 30 and 32 (I didn’t try any more than those). So, not sure what the differences are. I’m guessing Windows as I have the same core software installed on both images. But, from my brief test, as long as you have Emulate 32 installed, you can still use the following processor versions… 20, 21, 21.03, 23, 24, 28, 30, 31, & 32. When you install Emulate v32, those get installed as well. Matter of fact, you may have to remove/uninstall earlier versions of Emulate to install Emulate v32. I’m assuming since 30 & 32 worked, the rest will as well.