diff --git a/reactos/dll/win32/propsys/propsys.spec b/reactos/dll/win32/propsys/propsys.spec
index 539e8ceb855..d1a932d0ded 100644
--- a/reactos/dll/win32/propsys/propsys.spec
+++ b/reactos/dll/win32/propsys/propsys.spec
@@ -135,7 +135,7 @@
 @ stub PropVariantToInt64WithDefault
 @ stub PropVariantToStrRet
 @ stub PropVariantToString
-@ stub PropVariantToStringAlloc
+@ stdcall PropVariantToStringAlloc(ptr ptr)
 @ stub PropVariantToStringVector
 @ stub PropVariantToStringVectorAlloc
 @ stub PropVariantToStringWithDefault
diff --git a/reactos/dll/win32/propsys/propvar.c b/reactos/dll/win32/propsys/propvar.c
index 0af26f313b0..eea91ea4203 100644
--- a/reactos/dll/win32/propsys/propvar.c
+++ b/reactos/dll/win32/propsys/propvar.c
@@ -198,6 +198,43 @@ HRESULT WINAPI PropVariantToUInt64(REFPROPVARIANT propvarIn, ULONGLONG *ret)
     return hr;
 }
 
+HRESULT WINAPI PropVariantToStringAlloc(REFPROPVARIANT propvarIn, WCHAR **ret)
+{
+    WCHAR *res = NULL;
+    HRESULT hr = S_OK;
+
+    TRACE("%p,%p semi-stub\n", propvarIn, ret);
+
+    switch(propvarIn->vt)
+    {
+        case VT_NULL:
+            res = CoTaskMemAlloc(1*sizeof(WCHAR));
+            res[0] = '\0';
+            break;
+        case VT_LPSTR:
+            if(propvarIn->u.pszVal)
+            {
+                DWORD len;
+
+                len = MultiByteToWideChar(CP_ACP, 0, propvarIn->u.pszVal, -1, NULL, 0);
+                res = CoTaskMemAlloc(len*sizeof(WCHAR));
+                if(!res)
+                    return E_OUTOFMEMORY;
+
+                MultiByteToWideChar(CP_ACP, 0, propvarIn->u.pszVal, -1, res, len);
+            }
+            break;
+        default:
+            FIXME("Unsupported conversion (%d)\n", propvarIn->vt);
+            hr = E_FAIL;
+            break;
+    }
+
+    *ret = res;
+
+    return hr;
+}
+
 /******************************************************************
  *  PropVariantChangeType   (PROPSYS.@)
  */
@@ -209,6 +246,9 @@ HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT p
     FIXME("(%p, %p, %d, %d, %d): semi-stub!\n", ppropvarDest, propvarSrc,
           propvarSrc->vt, flags, vt);
 
+    if(vt == propvarSrc->vt)
+        return PropVariantCopy(ppropvarDest, propvarSrc);
+
     switch (vt)
     {
     case VT_I2:
@@ -277,6 +317,17 @@ HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT p
         }
         return hr;
     }
+    case VT_LPWSTR:
+    {
+        WCHAR *res;
+        hr = PropVariantToStringAlloc(propvarSrc, &res);
+        if (SUCCEEDED(hr))
+        {
+            ppropvarDest->vt = VT_LPWSTR;
+            ppropvarDest->u.pwszVal = res;
+        }
+        return hr;
+    }
     }
 
     switch (propvarSrc->vt)
diff --git a/reactos/media/doc/README.WINE b/reactos/media/doc/README.WINE
index 101dd9fa622..67f1a5e5ee9 100644
--- a/reactos/media/doc/README.WINE
+++ b/reactos/media/doc/README.WINE
@@ -154,7 +154,7 @@ reactos/dll/win32/pdh                 # Synced to WineStaging-1.9.11
 reactos/dll/win32/pidgen              # Synced to WineStaging-1.9.11
 reactos/dll/win32/powrprof            # Forked at Wine-1.0rc5
 reactos/dll/win32/printui             # Synced to WineStaging-1.9.11
-reactos/dll/win32/propsys             # Synced to WineStaging-1.9.11
+reactos/dll/win32/propsys             # Synced to WineStaging-1.9.16
 reactos/dll/win32/pstorec             # Synced to WineStaging-1.9.11
 reactos/dll/win32/qmgr                # Synced to WineStaging-1.9.11
 reactos/dll/win32/qmgrprxy            # Synced to WineStaging-1.9.11