Enables or disables the Parallels Tools AutoUpdate feature for a virtual machine.
PRL_RESULT PrlVmCfg_IsToolsAutoUpdateEnabled( PRL_HANDLE hVmCfg, PRL_BOOL_PTR pbEnabled );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle was passed.
PRL_ERR_SUCCESS - function completed successfully.