Finishes process of optimization of virtual hard disk.
PRL_HANDLE PrlVm_CancelCompact( PRL_HANDLE hVm );
PrlApiVm.h
PRL_HANDLE to job that describing async operation result (PRL_INVALID_HANDLE means not enough memory to instantiate async job represents object handle). Operation return code can be extracted with @ref PrlJob_GetRetCode() call. Possible values: PRL_ERR_INVALID_ARG - non valid PHT_VIRTUAL_MACHINE handle was passed PRL_ERR_UNINITIALIZED - unexpected error: uninitialized with server connection or non identified VM object
The machine should be registered on the server to do that.
