How about a list of Applications Which have been tried and whether they are compatible or not with Windows 7 Beta? To Start: Compatible: BlazeDTV 2.5a DivxCodecs ESET NOD32 Mozilla Firefox 3 Mozilla Firefox 3.1 beta 2 Spybot S&D CCleaner Vista Shortcut Manager (Removes little shortcut icon) K-Lite Codec Pack A1CTL 0.4 (UAC needs to be disabled) Acer Launch Manager (WinXP SP2 compatibility mode on setup.exe to install) Two Finger Scroll CCCP (Using zoom player, the media player that comes with this won't integrate video and subtitle files together, but will still play the video) CoreAVC Google Chrome Incompatible: BlazeDTV 2.1 (Upgrade to 2.5 and your serial will work fine) eboostr (it'll install if you set it to winxp sp2 compatibility mode, but..it'll crash your explorer after reset) Credit to all those posting below ;)