diff -r 8dc379deac15 -r 17d65127bce4 plugins/org.symbian.tools.wrttools/src/org/symbian/tools/wrttools/util/Util.java
--- a/plugins/org.symbian.tools.wrttools/src/org/symbian/tools/wrttools/util/Util.java	Mon Sep 27 11:17:53 2010 -0700
+++ b/plugins/org.symbian.tools.wrttools/src/org/symbian/tools/wrttools/util/Util.java	Mon Sep 27 11:43:44 2010 -0700
@@ -81,7 +81,7 @@
         }
 
         /* test invalid characters, allows only alphanumeric and '.' for UID */
-        String alphnum = ".0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+        String alphnum = "._0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
         for (int i = 0; i < widgetID.length(); i++) {
             if (alphnum.indexOf(widgetID.charAt(i), 0) == -1) {
                 return ("Invalid Widget identifier. Only alphanumeric or '.' is allowed");