What is the technical differences between solidworks composer and 3dvia composer?

It can be a little confusing at first but essentially the move to SolidWorks composer was to avoid such frustrations as having to run 2 license servers or having to fill in a form to transfer a standalone license.

To run earlier versions of a 3dvia Composer Network License you need to run a seperate license server.

To run SolidWorks Composer  Network license you just add the serial number (presuming it has been updated) to your SolidWorks Network License Manager.

This is done via the License Administration tab-> Modify.

There are still a few potential hiccups on the client side but these are rare and your reseller should be able to find solutions via the knowledgebase as there is a checklist of things to solve any issues in the transition.

Also standalone licenses are much simpler for SolidWorks composer, just like solidworks you can transfer licenses without filling in any forms etc that you had to with 3dvia Composer.

Another reason for the change was to align the releases of SolidWorks with the releases of Composer. Now a version of Composer that supports the latest version of SolidWorks files is released at the time. Previously there was a delay of 2-3months.

Cheers

Alan