diff --git a/reactos/dll/win32/mapi32/mapi32.spec b/reactos/dll/win32/mapi32/mapi32.spec
index 05c2e8277f7..46462ab5714 100644
--- a/reactos/dll/win32/mapi32/mapi32.spec
+++ b/reactos/dll/win32/mapi32/mapi32.spec
@@ -87,8 +87,8 @@
 144 stub HrDecomposeEID@28
 145 stub HrComposeMsgID@24
 146 stub HrDecomposeMsgID@24
-147 stdcall OpenStreamOnFile@24(ptr ptr ptr ptr ptr ptr) OpenStreamOnFile
-148 stdcall OpenStreamOnFile(ptr ptr ptr ptr ptr ptr)
+147 stdcall OpenStreamOnFile@24(ptr ptr long ptr ptr ptr) OpenStreamOnFile
+148 stdcall OpenStreamOnFile(ptr ptr long ptr ptr ptr)
 149 stdcall OpenTnefStream@28(ptr ptr ptr long ptr long ptr) OpenTnefStream
 150 stdcall OpenTnefStream(ptr ptr ptr long ptr long ptr)
 151 stdcall OpenTnefStreamEx@32(ptr ptr ptr long ptr long ptr ptr) OpenTnefStreamEx
@@ -145,17 +145,17 @@
 205 stub FDecodeID@12
 206 stub CchOfEncoding@4
 207 stdcall CbOfEncoded@4(ptr) CbOfEncoded
-208 stdcall MAPISendDocuments(ptr str str str long)
-209 stdcall MAPILogon(ptr str str long long ptr)
-210 stdcall MAPILogoff(ptr ptr long long)
-211 stdcall MAPISendMail(ptr ptr ptr long long)
-212 stdcall MAPISaveMail(ptr ptr ptr long long str)
-213 stdcall MAPIReadMail(ptr ptr str long long ptr)
-214 stdcall MAPIFindNext(ptr ptr str str long long ptr)
-215 stdcall MAPIDeleteMail(ptr ptr str long long)
-217 stdcall MAPIAddress(ptr ptr str long str long ptr long long ptr ptr)
-218 stdcall MAPIDetails(ptr ptr ptr long long)
-219 stdcall MAPIResolveName(ptr ptr str long long ptr)
+208 stdcall MAPISendDocuments(long str str str long)
+209 stdcall MAPILogon(long str str long long ptr)
+210 stdcall MAPILogoff(ptr long long long)
+211 stdcall MAPISendMail(ptr long ptr long long)
+212 stdcall MAPISaveMail(ptr long ptr long long str)
+213 stdcall MAPIReadMail(ptr long str long long ptr)
+214 stdcall MAPIFindNext(ptr long str str long long ptr)
+215 stdcall MAPIDeleteMail(ptr long str long long)
+217 stdcall MAPIAddress(ptr long str long str long ptr long long ptr ptr)
+218 stdcall MAPIDetails(ptr long ptr long long)
+219 stdcall MAPIResolveName(ptr long str long long ptr)
 220 stub BMAPISendMail
 221 stub BMAPISaveMail
 222 stub BMAPIReadMail
@@ -175,7 +175,7 @@
 236 stub cmc_read
 237 stub cmc_send
 238 stub cmc_send_documents
-239 stub HrDispatchNotifications@4
+239 stdcall HrDispatchNotifications@4(long) HrDispatchNotifications
 241 stub HrValidateParameters@8
 244 stub ScCreateConversationIndex@16
 246 stdcall HrGetOmiProvidersFlags(long long)
@@ -188,4 +188,4 @@
 253 stdcall FixMAPI@0() FixMAPI
 254 stdcall FGetComponentPath(str str ptr long long)
 255 stdcall FGetComponentPath@20(str str ptr long long) FGetComponentPath
-256 stdcall MAPISendMailW(ptr ptr ptr long long)
+256 stdcall MAPISendMailW(ptr long ptr long long)
diff --git a/reactos/dll/win32/mapi32/prop.c b/reactos/dll/win32/mapi32/prop.c
index 6128a600fd7..26874c1ec95 100644
--- a/reactos/dll/win32/mapi32/prop.c
+++ b/reactos/dll/win32/mapi32/prop.c
@@ -1501,7 +1501,7 @@ static HRESULT WINAPI IPropData_fnQueryInterface(LPPROPDATA iface, REFIID riid,
        IsEqualIID(riid, &IID_IMAPIProp) ||
        IsEqualIID(riid, &IID_IMAPIPropData))
     {
-        *ppvObj = This;
+        *ppvObj = &This->IPropData_iface;
         IPropData_AddRef(iface);
         TRACE("returning %p\n", *ppvObj);
         return S_OK;
diff --git a/reactos/dll/win32/mapi32/util.c b/reactos/dll/win32/mapi32/util.c
index 66e657f86e0..913497fa5e0 100644
--- a/reactos/dll/win32/mapi32/util.c
+++ b/reactos/dll/win32/mapi32/util.c
@@ -223,6 +223,15 @@ HRESULT WINAPI WrapProgress(PVOID unk1, PVOID unk2, PVOID unk3, PVOID unk4, PVOI
     return MAPI_E_NO_SUPPORT;
 }
 
+/*************************************************************************
+ * HrDispatchNotifications@4 (MAPI32.239)
+ */
+HRESULT WINAPI HrDispatchNotifications(ULONG flags)
+{
+    FIXME("(%08x)\n", flags);
+    return S_OK;
+}
+
 /*************************************************************************
  * HrThisThreadAdviseSink@8 (MAPI32.42)
  *
diff --git a/reactos/media/doc/README.WINE b/reactos/media/doc/README.WINE
index 7b80d8d3619..f9aeda84646 100644
--- a/reactos/media/doc/README.WINE
+++ b/reactos/media/doc/README.WINE
@@ -89,7 +89,7 @@ reactos/dll/win32/jscript             # Synced to WineStaging-2.2
 reactos/dll/win32/jsproxy             # Synced to WineStaging-2.2
 reactos/dll/win32/loadperf            # Synced to WineStaging-2.2
 reactos/dll/win32/lz32                # Synced to WineStaging-1.9.11
-reactos/dll/win32/mapi32              # Synced to WineStaging-1.9.11
+reactos/dll/win32/mapi32              # Synced to WineStaging-2.2
 reactos/dll/win32/mciavi32            # Synced to WineStaging-1.9.16
 reactos/dll/win32/mcicda              # Synced to WineStaging-1.9.16
 reactos/dll/win32/mciqtz32            # Synced to WineStaging-1.9.16