The only reason I am using 7 is that it came with the computer and Linux doesn't run MicroStation.

Have you considered setting your computer up to dual boot? Most Linux versions will let you do that and you can then use Linux for everyday tasks and have your Windows partition for specialist software where you have to use Windows.

I had my computer set to dual boot when I first started with Linux with XP on the Windows partition but the few Windows programs I used will run under Wine so I abandoned dual boot when I got my present computer as I had problems with the initial set up.

I checked the Wine AppDB for MicroStation and it said it would not run. I'm not surprised as heavy duty commercial software like that often doesn't - it usually needs too many specialist resources. The last entry was 2004, mind but I doubt the situation has changed significantly since then.