oleaut32: Add support for best version argument in LoadRegTypeLib.

dlls/oleaut32/tests/typelib.c

@@ -5676,6 +5676,20 @@ static void test_LoadRegTypeLib(void)
     hr = LoadRegTypeLib(&LIBID_TestTypelib, 1, 7, LOCALE_NEUTRAL, &tl);
     ok(hr == TYPE_E_LIBNOTREGISTERED, "got 0x%08x\n", hr);
 
+    hr = LoadRegTypeLib(&LIBID_TestTypelib, 0xffff, 0xffff, LOCALE_NEUTRAL, &tl);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+
+    hr = ITypeLib_GetLibAttr(tl, &attr);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+
+    ok(attr->lcid == 0, "got %x\n", attr->lcid);
+    ok(attr->wMajorVerNum == 2, "got %d\n", attr->wMajorVerNum);
+    ok(attr->wMinorVerNum == 5, "got %d\n", attr->wMinorVerNum);
+    ok(attr->wLibFlags == LIBFLAG_FHASDISKIMAGE, "got %x\n", attr->wLibFlags);
+
+    ITypeLib_ReleaseTLibAttr(tl, attr);
+    ITypeLib_Release(tl);
+
     DeleteFileA("test_actctx_tlb.tlb");
     DeleteFileA("test_actctx_tlb2.tlb");
 

dlls/oleaut32/typelib.c

@@ -536,7 +536,7 @@ HRESULT WINAPI LoadRegTypeLib(
         res= LoadTypeLib(bstr, ppTLib);
         SysFreeString(bstr);
 
-        if (*ppTLib)
+        if ((wVerMajor!=0xffff || wVerMinor!=0xffff) && *ppTLib)
         {
             TLIBATTR *attr;