After reading the start guide i tryied to install the regex from the command prompt of Visual C++ Express: D:\programmi\boost\boost_1_35_0\libs\regex\build>nmake -fvc8.mak now i have a new vc80 directory an then: D:\programmi\boost\boost_1_35_0\libs\regex\build>nmake -fvc8.mak install with this error: Building Boost.Regex without ICU / Unicode support: Hint: set ICU_PATH on the nmake command line to point to your ICU installation if you have one. copy vc80\libboost_regex-vc80-mt-s-1_35.lib "..\..\VC\lib" Impossibile trovare il percorso specificato. 0 file copiati. NMAKE : fatal error U1077: 'copy' : return code '0x1' Stop. The traduction is: impossible finding the specifiyed directory, 0 files copyed. Have i made a mistake? Thanks and regards! ___________________________________ Scopri il Blog di Yahoo! Mail: trucchi, novità, consigli... e la tua opinione! http://www.ymailblogit.com/blog/