Multiple users editing single file simultaneously

[Parthiban]

What is the steps for Multiple users editing single file simultaneously at AUTOCAD2009

[Kyle Reese]

As far as I know that is not possible.

[NukeCad]

This sounds like a dangerous practice, just keeping track of who has changed what will be a nightmare.

However:

About the nearest that I know of at the moment is Autocad 360.

It is limited and may not be quite what you are looking for.

It will allow one or more users to work on / mark up a drawing in real time over the cloud.
Its only for 2D at the moment.

The basic version is free, but I think you wil need one of the pro versions to work on drawings at the same time.
https://www.autocad360.com/how-autocad-360-works/

Also take a look at these tutorial videos to see if it can do what you require:
https://www.autocad360.com/help/