Alan, AFAIR and according to this --
http://quantlib.org/install/vc10.shtml -- "The others are not needed by QuantLib, but you might want to download them anyway." While the QuantLib part is irrelevant here, the download them anyway part should still be safe (if not minimal...). So, if you're unsure, just get them all. Although given what outrun has said, I would uncheck everything that says "static" or "single threaded."Outrun -- {static vs dynamic} and {single-threaded vs multi-threaded} are among the choices (as is {debug vs release}), but the relative disadvantage (although not for you, given your stated preferences) of the BoostPro installer is that only 32-bit version is present. For convenience, this is the relevant window: