Logs off the Virtuozzo Service.
A handle of type PHT_JOB containing the results of this asynchronous operation or PRL_INVALID_HANDLE if there's not enough memory to instantiate the job object.
The function logs of the Virtuozzo Service and ends a session that was started with the PrlSrv_Login or the PrlSrv_LoginLocal function.
To get the return code from the PHT_JOB object, use the PrlJob_GetRetCode function. Possible values are:
PRL_ERR_INVALID_ARG - invalid handle was passed.
PRL_ERR_SUCCESS - function completed successfully.