Posted by Grant Foraker on February 11, 2005 at 13:59:28:
Posted a message a few weeks back and haven't seen a response. Just saw this in the Windows IT Pro newletter.
"That said, I think I've identified a major problem with XP Pro x64, and it's going to hamper migration. There are still far too many applications that won't run on XP Pro x64 and many that won't even install on the platform. Two main reasons for the latter problem exist. First, many applications (including a lot of Microsoft
applications) perform a version check and incorrectly assume that XP Pro x64 is a future version and refuse to install. Second, many 32-bit applications still inexplicably use 16-bit installers. Because x64 technologies no longer include a 16-bit subsystem, 16-bit installers can't run. Third, entire classes of applications don't even exist in
x64 format. For example, there are no tier-one antivirus applications that will work on XP Pro x64 yet."