Hi Volodya, Thanks for your suggestion. I tried it, but to of no avail. Here's what I did. I copied the nighly build src and built bjam.exe. 'bjam.exe --version' shows Boost.Build V2 (Milestone 12) Boost.Jam 03.1.17 I just copied this binary to my place. I didn't copy any of the *.jam files from the nightly build. Is it ok? If this is correct, I'm afraid the fix didn't work. I am upper-casing the first letter of the path (excluding the drive letter) to get bjam to work. Thanks, Anant