HP Proliant ML350p Gen 8 Micro Server for office LAN

Hello,

we have an HP Proliant ML350p Gen 8 Micro Server with 4 Cores, Intel Xeon E5-2609 Processor, 2.40 GHZ speed, 3TB, HDD capacity.  The OS is Multipoint Server Premium 2012.  Initially it was to be used with 3 thin clients.  We however want it to be used for the rest of the users on the network who are about 30.  It will do file sharing, run accounting software and typically server tasks.

Will the Multipoint Server Premium 2012 suffice or we need a new OS?  What else is needed for the server to support the users optimally?

Thanks.