For example the Antivirus, firewalls and similar must list Vista 64. Older software seems to run "most of the time." But for now you have to research each old title.
I went computer shopping last night...and most of the hp systems I found were shipping with 64 bit vista. Am i gonna have any issues with this as far as running software (my office had issues with software on 64 bit XP as opposed to 32 bit)? Thanks for any help