Upgrading from Exchange Server 2007 SP1 to SP2

Download SP2 from the MS site and install it :-)

I am pretty sure sp2 alone is not available from MS, it comes with the whole Exchange Server.

When I upgraded from RTM to SP1 it wasn't just downloading and installing.

So I should just run this Setup on the current Exchange Server:

http://www.microsoft.com/downloads/details.aspx?familyid=4c4bd2a3-5e50-42b0-8bbb-2cc9afe3216a&displaylang=en&Hash=RWe0QrK9cX2ok93g8kLN3%2beN2ijX%2f6%2fOHRFLNVZzeUol%2fg0BX%2b2FA%2bbezuFC%2bjPLVbMyVOgT40maB%2bKWWMtULQ%3d%3d#filelist

Correct. Grab the file, extract to a location on your local server, then run setup.exe.

Simon.

I think you are confusing R2 and SP2

I was running R2 first, while upgrading from R2 to SP1, I just ran the setup file of Exchange 2007 with sp1 and it was a disaster. Everything had to uninstalled and then had to reinstall from scratch....

Thats why was a bit concerned this time.

As with all things of this type - make a good backup first - but AFAIK there are no issues

I see that Exchange sp2 is in 32 and 64 bit.

Does that mean it can now be intalled on 32Bit Server 2003?

32bit edition of exchange 2007 and its service pack were always available.

But installing Exchange 2007 32bit version is production is not supported in production environment, it only meant to be installed in LAB or in testing environment.

Exchange 2007 System Requirements (Check the OS requirements section)
http://technet.microsoft.com/en-us/library/aa996719.aspx

So really one should be using 64bit?

64bit in production of course yes.