PROTOCOLSTATUS - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
#ifndef _WINSTA_H

typedef struct _PROTOCOLSTATUS
{
    PROTOCOLCOUNTERS Output;
    PROTOCOLCOUNTERS Input;
    CACHE_STATISTICS Cache;
    ULONG AsyncSignal;
    ULONG AsyncSignalMask;
} PROTOCOLSTATUS, *PPROTOCOLSTATUS;

#endif

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This type is documented in the [MS-TSTS] specification.