Should be OK. From FM documentation:
Windows Server 2012 R2 Standard Edition with Update (see Microsoft KB 2919355)
It works perfectly.
Our current inhouse system is running on Windows Server 2012 R2 Standardwith update.
Server 15.01 (have held off on updating the server for now) and we gernerally have 25-30 FMPro15 users connected
1 of 1 people found this helpful
A customer of ours has a Windows server 2012 standard edition.
You mean the non-R2 version? Then no.
While there may be 'hacks' to make it work you'd put yourself squarely outside of support parameters. Not something that I would be comfortable with...
Note that back when FMS14 was released it was made clear that Windows 2012 (the non-R2 version) was on the deprecated list: