How to disable features in Vista to enable behavior like in Windows XP with broadcasts packages? Application which run on Vista does not receive broadcast packages. I tested it with Microsoft Loopback Adapter and in network with Cisco Router. All the time have same result one of thousands packages could be received by application. I found discussion in MSDN developers forum and developers there have similar problem there. They found that Vista has IGMPv3 and Windows XP IGMPv2 which does not block multicast and broadcast packages. P.S. I'm cannot go back to Windows XP because of hardware compatibility but sometimes I want to do that.

Hi, It is a development related program. Please understand that this issue mainly focus on Windows Vista system questions. For software development related programs, MSDN is the best resource for us. The following thread discussed the lost of UDP broadcast packages in Windows Vista. Hope it helps. http://forums.microsoft.com/msdn/ShowPost.aspx?PostID=1671176&SiteID=1 If further discussion is needed, please post a thread in our MSDN forum. http://forums.microsoft.com/MSDN/default.aspx?ForumGroupID=24&SiteID=1