You cannot use one Order ID to activate two instances of GeneSpring.
 
To activate another instance of GeneSpring on a virtual machine which is on the same machine, using the same Order ID, you need to 'Surrender' the license/Order ID from the first instance. Then, use the same license to activate GeneSpring on the virtual machine (To surrender the Order ID: Go to Help -> License Manager -> Surrender).
 
When you want to switch back, you need to surrender the Order ID again.

It is not possible to activate GeneSpring 12.x using a GeneSpring 7.3 license key. To activate GeneSpring 12.x you require a new valid 'Order ID'.

You can work with both GeneSpring GX 7.3 and GeneSpring 12.x simultaneously on the same computer if you have separate licenses for each version.

Please visit the GeneSpring support portal at http://genespring-support.com.
 
Select the ‘Request Free Trial’ option and you will be asked to register to download the free trial if you have not registered already.
If you are already registered, please log into the portal to download the software and request the trial license following these instructions:

A GeneSpring fixed license is system specific. This type of license can only be activated on individual machines, and cannot be transferred to other machines without being surrendered on the previous machine first.

If multiple users want to use GeneSpring with a single license, then your organisation can purchase a GeneSpring desktop floating/concurrent license. In this case, a single license with a number of concurrent keys specified by you will be issued. The number of concurrent keys determines how many users are able to use GeneSpring at the same time.

A fixed license is specific for a single machine and can be accessed by a single user at any given time, whereas a floating/concurrent license can be used by multiple users at a time with the help of concurrent licenses (see Q3.).

A floating license / concurrent license allows multiple users to share the use of an application. A single floating license can be used by a number of concurrent users. The Floating License Server holds the license and serves licenses to the users based on availability. The number of concurrent keys has to be specified at the time of purchase. This number determines the maximum number of GeneSpring applications that can be run simultaneously.
 

There are two types of license model for GeneSpring:
1) Desktop License
2) Enterprise/Workgroup License
 
Desktop License:
GeneSpring Desktop licenses can be divided into two categories :
a) Fixed / Standalone license
b) Floating / Concurrent license
 
Enterprise/Workgroup License:
Enterprise licenses can be divided into two categories :
i) Work Group Server (WG Server)
ii) Work Group Client (WG_Client)