active License without login?

in our company we have a business license and use TV to give support to external Users which can download a customized QS-Module from our Website. security policies does not allow TV on internal clients and only a few of the 10K User needs it, so Teamviewer portable runs on Citrix Server. the license information was in the tv.ini in everything was fine - until we upgraded from v12 to v14.... 

is there any chance to use TV without the need of user registration and logon and registering devices?  and it is no way to use AD-connector or any Cloud-solution. otherwise it would be definitly unusable for our company.

how does other companys do with TV?