-            if (strstr(linebuf, "title=") == linebuf)
-                title = linebuf + strlen("title=");
-            if (strstr(linebuf, "default topic=") == linebuf)
-                start = linebuf + strlen("default topic=");
-            if (strstr(linebuf, "index file=") == linebuf)
-                index = linebuf + strlen("index file=");
-            if (strstr(linebuf, "contents file=") == linebuf)
-                contents = linebuf + strlen("contents file=");
-            if (strstr(linebuf, "charset=") == linebuf)
-                charset = linebuf + strlen("charset=");
+            if (wxStrstr(linebuf, _T("title=")) == linebuf)
+                title = linebuf + wxStrlen(_T("title="));
+            if (wxStrstr(linebuf, _T("default topic=")) == linebuf)
+                start = linebuf + wxStrlen(_T("default topic="));
+            if (wxStrstr(linebuf, _T("index file=")) == linebuf)
+                index = linebuf + wxStrlen(_T("index file="));
+            if (wxStrstr(linebuf, _T("contents file=")) == linebuf)
+                contents = linebuf + wxStrlen(_T("contents file="));
+            if (wxStrstr(linebuf, _T("charset=")) == linebuf)
+                charset = linebuf + wxStrlen(_T("charset="));