Fixing bug 97650. Fix to display unread mail count of the default account on Win XP platform. Interval for timer that updates the registry with unread count is set in winprefs.js file. r=mscott, sr=sspitzer

modules/libpref/src/win/winpref.js

@@ -169,3 +169,8 @@ pref("netinst.profile.show_profile_wizard", true);
 //The following pref is internal to Communicator. Please
 //do *not* place it in the docs...
 pref("netinst.profile.show_dir_overwrite_msg",  true); 
+
+// Unread mail count timer. Value to be specified in seconds
+// default is 5 minutes, i.e., 5 * 60 seconds = 300
+pref("mail.windows_xp_integration.unread_count_interval", 300);
+