Windows CAL's question

I have 1 HP - PROLIANT MICRO SERVER with windows 2012 R2, we use to share files with 19 users do we need 19 windows CALS?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
You need licenses for either each user or each device that will access that machine. Even if it isn't at the same time.
It will most likely not be cost effective, but you may also purchase a Windows Server Datacenter CAL which will prevent you from having to purchase the User CALs.  This is a recent change that I have verified with a reputable software vendor/reseller.

If you plan on doing some virtualization from this server, then Datacenter would be a good choice for you.  If you want to just run the server Standalone, then buying Windows Standard licenses and simply buying the CALs would be more cost effective.
To clarify what others already posted, you can license based on users or per device
you seem to only have one server in the environment.
The distinction often deals with which is more cost effective, i.e. if you have one server and two workstation with 15 users, at any one time, only two users can access the server.
buying 2 device CAls licenses would make sense

There are times, that number of server, number of devices, it could become more advantageos to bu the 15 user CALS granting them rights to all servers in the environment as compared to to other scenarios.

this discussion may help to add perspective,

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.