OK, so I invoked Jam from my Boost root directory using: c:\boost_1_27_0\boost-build\jam -sBOOST_ROOT=. -sTOOLS="msvc" Now Jam is actually doing something, but I'm still getting messages like: The system cannot find the specified path. C:\Program is not recongnized as an internal or external command, operable program or batch file Also, I get a lot of messages like: ...found 1606 targets... ...updating 381 targets... [many other messages] ...failed msvc-C++-action [many other messages] ...failed updating 168 targets... ...skipped 202 targets... ...updated 11 targets... Obviously some things are happening, but I get the idea that it didn't work 100%. Do you have any advice? ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.