Trying to run old software on a new PC is quite a challenge; specs change, sometimes in incompatible ways and new technologies replace the old. Trying to run orcad386 isn’t without it’s challenges as you can read in this Yahoo Group dedicated to run Old Dos Orcad.
The thing that annoys me the most is the Mouse pointer integration in VirtualBox; clicking in my VM to move the mouse and pressing the “Host Key” to release it has cause me many issues. That and video (I did manage to get SVGA 1024×768@8bpp working!).
Which is why I opened up Visual Studio and the Windows 3.11 DDK… To write a mouse driver… If it goes well maybe I’ll take on the challenge of writing a video driver.