The current version of Recap Pro runs on Windows 7 and 8 (download link).
However, for the time being you can still download Recap version 1.0 from this link:
http://labs-download.autodesk.com/us/labs/trials/worldwide/ReCap1.0.exe
and the service pack for x64 at:
http://updatesdl.autodesk.com/updates/files/autodeskrecap_sp1_for1.0.43.27_x64.msp
If you ever need to run Recap on XP, it might be handy to have this installer in your toolkit…