Ok. I got it now. We only use one version of AutoCAD with no verticals, so that never really occurred to me. However, you could address that by doing the following:
1) Open an explorer window.
2) From the pulldowns, select Tools->Folder Options
3) Select the File Types tab
4) Scroll down till you find the DWG file type, and select it
5) Click the Advanced button
6) Add new actions to open DWG files with the desired programs
Then, when you right-click a DWG file in explorer, you will have options in your context menu to open it in whichever program you desire.
Chuck,....
The problem with that is :
AutoCAD is not anough intelligent to detect what version of AutoCAD it is.
So, AutoCAD open this drawing and give you an error if he can not open this drawing..
Also, AutoCAD Open ALWAYS with the last Profile..
so if you have program runnig with it...you need to restart AutoCAD or reload the program.
About a long time i'm trying to search a program to allow user to make a choice when dblclick a DWG and ask a question like:
What AutoCAD version ?
Which profile ?
see ?