Returns the host operating system type.
PRL_RESULT PrlSrvCfg_GetHostOsType( PRL_HANDLE hSrvConfig, PRL_HOST_OS_TYPE_PTR pnHostOsType );
PrlApiDisp.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.