Hi Gurcharan,
> i'm checking for multicast before trying AG on vista but can't seem to > make it work. here's the symptom: > > running VLC to a multicast address shows no activitiy in VLC > apparently. however, the task manager shows the appropriate > number of bits hitting the network card. all firewalls and virus > scanners are turned off. what's blocking the bits from getting to > the application? Looks like VLC has issues with multicast on Vista, see: https://mail.internet2.edu/wws/arc/wg-multicast/2007-07/msg00002.html I think I had VIC and RAT working with multicast on Vista, unfortunately I don't have a Vista machine handy to confirm it. Cheers, Doug