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On this page I followed the link in Step 4 "Install the platform SDK"; on the next page I clicked on the link in Step 2 "Platform SDK" and ended up here: http://www.microsoft.com/downloads/details.aspx?familyid=0BAF2B35-C656-4969-ACE8-E4C0C0716ADB&displaylang=en
"Microsoft Windows Server 2003 R2 Platform SDK Web Install"
I downloaded 'PSDK-x86.exe', chose a Typical install.
Next I installed the "Microsoft .NET Framework Version 2.0 Redistributable Package (x86)" from http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&DisplayLang=en
When I launched the installer it asked me to choose between "Repair" and (I think) "Remove" an existing installation. I chose "Repair".
Finally I downloaded and installed ".NET Framework 2.0 Software Development Kit (SDK) (x86)" from http://www.microsoft.com/downloads/details.aspx?familyid=FE6F2099-B7B4-4F47-A244-C96D69C35DEC&displaylang=en
Obtained ROOT source from their CVS repository using the tag v5.14.00e
http://root.cern.ch/twiki/bin/view/ROOT/PatchesV5-14-00
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