Compile X++ faster on a AX2012 R2 CU7 or newer

On the AOS server open a Command Prompt as administrator and locate the directory where Axbuild.exe is. Typically it is located in C:\Program Files\Microsoft Dynamics AX\60\Server\MicrosoftDynamicsAX\bin

Type in the following where /s=01 is the AOS instance and workers is the CPU / Cores on the server (1.4 pr. cores, so 4 cores would be 5.6~6):

axbuild.exe  xppcompileall  /s=01 /altbin=”C:\Program Files (x86)\Microsoft Dynamics AX\60\Client\Bin” /workers=6