PowerShell is required to create a service account. Once created it can be managed in the GUI.
#Create the MSA New-ADServiceAccount -Name MyAppSrv -RestrictToSingleComputer #Add the Machine to be used with the account Add-ADComputerServiceAccount -Identity SRV-01 -ServiceAccount MyAppSrv #You can test to see if it is working (it won't... yet) Test-ADServiceAccount -Identity MyAppSrv #Finally, install the account and test again Install-ADServiceAccount MyAppSrv Test-ADServiceAccount -Identity MyAppSrv #Next, Configure the service to use the account.
Go to your service you wish to run on a service account, on the logon tab, set the credentials for the service as a network account. Use the browse button to find your MSA. Remove the pre-populated password from the fields and save.