The last reference to this failure I found in the archive was from Feb 19th. I got boost_1_30_0.zip from SourceForge yesterday. Have I missed an update to something somewhere? TIA <bjam log> ...found 2392 targets... ...updating 28 targets... FileClone libs\regex\build\bin-stage\boost_regex_debug.lib 1 file(s) copied. FileClone libs\regex\build\bin-stage\boost_regex_debug.lib 1 file(s) copied. FileClone libs\regex\build\bin-stage\boost_regex.lib 1 file(s) copied. FileClone libs\regex\build\bin-stage\boost_regex.lib 1 file(s) copied. vc-Link libs\date_time\build\bin\boost_date_time.dll\vc7\debug\runtime-link-dynamic\boost_date_time.dll libs\date_time\build\bin\boost_date_time.dll\vc7\debug\runtime-link-dynamic\boost_date_time.lib vc-Link libs\date_time\build\bin\boost_date_time.dll\vc7\release\runtime-link-dynamic\boost_date_time.dll libs\date_time\build\bin\boost_date_time.dll\vc7\release\runtime-link-dynamic\boost_date_time.lib LINK : warning LNK4089: all references to 'MSVCP71.dll' discarded by /OPT:REF vc-Link libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.dll libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.lib cpp_main.obj : error LNK2019: unresolved external symbol "int __cdecl cpp_main(int,char * * const)" (?cpp_main@@YAHHQAPAD@Z) referenced in function "public: virtual int __thiscall `anonymous namespace'::cpp_main_caller::function(void)" (?function@cpp_main_caller@?A0xe9549083@@UAEHXZ) libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.dll : fatal error LNK1120: 1 unresolved externals "link" /nologo /INCREMENTAL:NO /DEBUG /DLL /subsystem:console /out:"libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.dll" /IMPLIB:"libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.lib" /LIBPATH:"C:\Program Files\Microsoft Visual Studio .NET 2003\VC7\lib" @"libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.CMD" ...failed vc-Link libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.dll libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-single\boost_prg_exec_monitor.lib... ...skipped boost_prg_exec_monitor.dll for lack of boost_prg_exec_monitor.lib... vc-Link libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-multi\boost_prg_exec_monitor.dll libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-multi\boost_prg_exec_monitor.lib cpp_main.obj : error LNK2019: unresolved external symbol "int __cdecl cpp_main(int,char * * const)" (?cpp_main@@YAHHQAPAD@Z) referenced in function "public: virtual int __thiscall `anonymous namespace'::cpp_main_caller::function(void)" (?function@cpp_main_caller@?A0xe9549083@@UAEHXZ) libs\test\build\bin\boost_prg_exec_monitor.dll\vc7\debug\runtime-link-static\threading-multi\boost_prg_exec_monitor.dll : fatal error LNK1120: 1 unresolved externals <snip> ...failed updating 12 targets... ...skipped 12 targets... ...updated 4 targets...