Hi Baz,
I've just tested for you running MS Work 9 on Vista and Windows 7 64 bit.
Works 9 opens any Word or Works 7 & 9 documents originally saved
in 90. using word 97, Office 2000, 2003 and 2007.
BTW No MS Work come with OS - it is added as an extra only by
PC / laptop maker. It's done by HP and Dell for sure, (probably Acer
too).
If you buy Win 7 and install it yourself - it comes without any additional
aplication. Even Windows Live Mail (which I hate) is not install by
defautl.
http://windows.microsoft.com/en-US/windows-vista/Working-with-Windows-Mail
Working with Windows Mail
For information about e-mail in Windows 7, including how to get
Windows Live Mail, go to the E-mail feature page on the Windows website.
Here are help topics that provide ...
http://windows.microsoft.com/en-US/windows-vista/Working-with-Windows-Mail
http://explore.live.com/windows-live-mail?os=other
I hope this helps.