-                wxRegKey(wxRegKey::HKCR, strKey + _T("\\Application")).
-                    QueryValue(_T(""), ddeServer);
-                wxRegKey(wxRegKey::HKCR, strKey + _T("\\Topic")).
-                    QueryValue(_T(""), ddeTopic);
+                wxRegKey(wxRegKey::HKCR, strKey + wxT("\\Application")).
+                    QueryValue(wxT(""), ddeServer);
+                wxRegKey(wxRegKey::HKCR, strKey + wxT("\\Topic")).
+                    QueryValue(wxT(""), ddeTopic);