Client can use this method to understand where it executed: on HostOS or on GuestOS (inside VM ).
PRL_RESULT PrlApi_IsGuestOs( PRL_BOOL_PTR result );
PrlApiDeprecated.h
@param bool result: 1 - on GuestOS (inside VM) / 0 - on HostOS @return PRL_RESULT. Possible values: PRL_ERR_INVALID_ARG - non valid (NULL) pointer to result PRL_ERR_SUCCESS - operation successfully completed