diff --git a/include/rpcasync.h b/include/rpcasync.h
index d90bbe0..d4bf4f8 100644
--- a/include/rpcasync.h
+++ b/include/rpcasync.h
@@ -26,12 +26,162 @@
     void* Head;
 } RPC_ERROR_ENUM_HANDLE;
 
+typedef enum tagExtendedErrorParamTypes
+{
+    eeptAnsiString = 1,
+    eeptUnicodeString,
+    eeptLongVal,
+    eeptShortVal,
+    eeptPointerVal,
+    eeptNone,
+    eeptBinary
+} ExtendedErrorParamTypes;
+
+#define MaxNumberOfEEInfoParams 4
+#define RPC_EEINFO_VERSION      1
+
+typedef struct tagBinaryParam
+{
+    void *Buffer;
+    short Size;
+} BinaryParam;
+
+typedef struct tagRPC_EE_INFO_PARAM
+{
+    ExtendedErrorParamTypes ParameterType;
+    union
+    {
+        LPSTR AnsiString;
+        LPWSTR UnicodeString;
+        LONG LVal;
+        short SVal;
+        ULONGLONG PVal;
+        BinaryParam BVal;
+    } u;
+} RPC_EE_INFO_PARAM;
+
+#define EEInfoPreviousRecordsMissing    0x1
+#define EEInfoNextRecordsMissing        0x2
+#define EEInfoUseFileTime               0x4
+
+#define EEInfoGCCOM                     11
+#define EEInfoGCFRS                     12
+
+typedef struct tagRPC_EXTENDED_ERROR_INFO
+{
+    ULONG Version;
+    LPWSTR ComputerName;
+    ULONG ProcessID;
+    union
+    {
+        SYSTEMTIME SystemTime;
+        FILETIME FileTime;
+    } u;
+    ULONG GeneratingComponent;
+    ULONG Status;
+    USHORT DetectionLocation;
+    USHORT Flags;
+    int NumberOfParameters;
+    RPC_EE_INFO_PARAM Parameters[MaxNumberOfEEInfoParams];
+} RPC_EXTENDED_ERROR_INFO;
+
+#define RPC_ASYNC_VERSION_1_0   sizeof(RPC_ASYNC_STATE)
+
+typedef enum _RPC_NOTIFICATION_TYPES
+{
+    RpcNotificationTypeNone,
+    RpcNotificationTypeEvent,
+    RpcNotificationTypeApc,
+    RpcNotificationTypeIoc,
+    RpcNotificationTypeHwnd,
+    RpcNotificationTypeCallback,
+} RPC_NOTIFICATION_TYPES;
+
+typedef enum _RPC_ASYNC_EVENT
+{
+    RpcCallComplete,
+    RpcSendComplete,
+    RpcReceiveComplete,
+    RpcClientDisconnect,
+    RpcClientCancel,
+} RPC_ASYNC_EVENT;
+
+struct _RPC_ASYNC_STATE;
+
+typedef void RPC_ENTRY RPCNOTIFICATION_ROUTINE(struct _RPC_ASYNC_STATE *,void *,RPC_ASYNC_EVENT);
+typedef RPCNOTIFICATION_ROUTINE *PFN_RPCNOTIFICATION_ROUTINE;
+
+typedef union _RPC_ASYNC_NOTIFICATION_INFO
+{
+    struct
+    {
+        PFN_RPCNOTIFICATION_ROUTINE NotificationRoutine;
+        HANDLE hThread;
+    } APC;
+    struct
+    {
+        HANDLE hIOPort;
+        DWORD dwNumberOfBytesTransferred;
+        DWORD_PTR dwCompletionKey;
+        LPOVERLAPPED lpOverlapped;
+    } IOC;
+    struct
+    {
+        HWND hWnd;
+        UINT Msg;
+    } HWND;
+    HANDLE hEvent;
+    PFN_RPCNOTIFICATION_ROUTINE NotificationRoutine;
+} RPC_ASYNC_NOTIFICATION_INFO, *PRPC_ASYNC_NOTIFICATION_INFO;
+
+#define RPC_C_NOTIFY_ON_SEND_COMPLETE   0x1
+#define RPC_C_INFINITE_TIMEOUT          INFINITE
+
+typedef struct _RPC_ASYNC_STATE
+{
+    unsigned int Size;
+    ULONG Signature;
+    LONG Lock;
+    ULONG Flags;
+    void *StubInfo;
+    void *UserInfo;
+    void *RuntimeInfo;
+    RPC_ASYNC_EVENT Event;
+    RPC_NOTIFICATION_TYPES NotificationType;
+    RPC_ASYNC_NOTIFICATION_INFO u;
+    LONG_PTR Reserved[4];
+} RPC_ASYNC_STATE, *PRPC_ASYNC_STATE;
+
+#define RpcAsyncGetCallHandle(async) (((PRPC_ASYNC_STATE)async)->RuntimeInfo)
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncInitializeHandle(PRPC_ASYNC_STATE,unsigned int);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncRegisterInfo(PRPC_ASYNC_STATE);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncGetCallStatus(PRPC_ASYNC_STATE);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncCompleteCall(PRPC_ASYNC_STATE,void *);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncAbortCall(PRPC_ASYNC_STATE,ULONG);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncCancelCall(PRPC_ASYNC_STATE,BOOL);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcAsyncCleanupThread(DWORD);
 RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorStartEnumeration(RPC_ERROR_ENUM_HANDLE*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorGetNextRecord(RPC_ERROR_ENUM_HANDLE*,BOOL,RPC_EXTENDED_ERROR_INFO*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorEndEnumeration(RPC_ERROR_ENUM_HANDLE*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorResetEnumeration(RPC_ERROR_ENUM_HANDLE*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorGetNumberOfRecords(RPC_ERROR_ENUM_HANDLE*,int*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorSaveErrorInfo(RPC_ERROR_ENUM_HANDLE*,PVOID*,SIZE_T*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorLoadErrorInfo(PVOID,SIZE_T,RPC_ERROR_ENUM_HANDLE*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorAddRecord(RPC_EXTENDED_ERROR_INFO*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcErrorClearInformation(void);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcGetAuthorizationContextForClient(RPC_BINDING_HANDLE,BOOL,LPVOID,PLARGE_INTEGER,LUID,DWORD,PVOID,PVOID*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcFreeAuthorizationContext(PVOID*);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcSsContextLockExclusive(RPC_BINDING_HANDLE,PVOID);
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcSsContextLockShared(RPC_BINDING_HANDLE,PVOID);
+
+RPCRTAPI RPC_STATUS RPC_ENTRY I_RpcAsyncSetHandle(PRPC_MESSAGE,PRPC_ASYNC_STATE);
+RPCRTAPI RPC_STATUS RPC_ENTRY I_RpcAsyncAbortCall(PRPC_ASYNC_STATE,ULONG);
+RPCRTAPI int        RPC_ENTRY I_RpcExceptionFilter(ULONG);
 
 #ifdef __cplusplus
 }