diff --git a/include/textstor.idl b/include/textstor.idl
index 2e79e3c9bea..25f7749477b 100644
--- a/include/textstor.idl
+++ b/include/textstor.idl
@@ -20,8 +20,19 @@
 import "oaidl.idl";
 #endif
 
-cpp_quote("#define TS_E_READONLY        MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0209)")
+cpp_quote("#define TS_E_INVALIDPOS      MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0200)")
 cpp_quote("#define TS_E_NOLOCK          MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0201)")
+cpp_quote("#define TS_E_NOOBJECT        MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0202)")
+cpp_quote("#define TS_E_NOSERVICE       MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0203)")
+cpp_quote("#define TS_E_NOINTERFACE     MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0204)")
+cpp_quote("#define TS_E_NOSELECTION     MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0205)")
+cpp_quote("#define TS_E_NOLAYOUT        MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0206)")
+cpp_quote("#define TS_E_INVALIDPOINT    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0207)")
+cpp_quote("#define TS_E_SYNCHRONOUS     MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0208)")
+cpp_quote("#define TS_E_READONLY        MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x0209)")
+cpp_quote("#define TS_E_FORMAT          MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x020a)")
+
+cpp_quote("#define TS_S_ASYNC           MAKE_HRESULT(SEVERITY_SUCCESS, FACILITY_ITF, 0x0300)")
 
 
 const ULONG TS_DEFAULT_SELECTION = ~0u;
@@ -50,6 +61,9 @@ const WCHAR TS_CHAR_EMBEDDED     = 0xfffc;
 const WCHAR TS_CHAR_REGION       = 0x0000;
 const WCHAR TS_CHAR_REPLACEMENT  = 0xfffd;
 
+const DWORD TS_IAS_NOQUERY    = 0x1;
+const DWORD TS_IAS_QUERYONLY  = 0x2;
+
 typedef [uuid(05fcf85b-5e9c-4c3e-ab71-29471d4f38e7)]  enum { TS_AE_NONE, TS_AE_START, TS_AE_END } TsActiveSelEnd;
 typedef [uuid(033b0df0-f193-4170-b47b-141afc247878)]  enum { TS_RT_PLAIN, TS_RT_HIDDEN, TS_RT_OPAQUE } TsRunType;
 typedef [uuid(ef3457d9-8446-49a7-a9e6-b50d9d5f3fd9)]  GUID TS_ATTRID;