oleacc: Add GetOleaccVersionInfo.

dlls/oleacc/main.c

@@ -61,3 +61,9 @@ HRESULT WINAPI DllUnregisterServer(void)
     FIXME("\n");
     return S_OK;
 }
+
+void WINAPI GetOleaccVersionInfo(DWORD* pVersion, DWORD* pBuild)
+{
+    *pVersion = MAKELONG(2,4); /* Windows XP version of oleacc: 4.2.5406.0 */
+    *pBuild = MAKELONG(0,5406);
+}

dlls/oleacc/oleacc.spec

@@ -7,7 +7,7 @@
 @ stub CreateStdAccessibleProxyW
 @ stdcall -private DllRegisterServer()
 @ stdcall -private DllUnregisterServer()
-@ stub GetOleaccVersionInfo
+@ stdcall GetOleaccVersionInfo(ptr ptr)
 @ stub GetRoleTextA
 @ stub GetRoleTextW
 @ stub GetStateTextA