I was trying to follow the steps found in http://www.adampetersen.se/articles/lispweb.htm, but I'm not able to install usocket using quicklisp in my Windows 7 / Emacs / CLISP environment, this is what happens in Emacs: CL-USER> (ql:quickload "usocket") ; Fetching #<URL "http://beta.quicklisp.org/dist/quicklisp/2011-01-10/systems.txt"> ; 78.15KB ================================================== 80,026 bytes in 1.29 seconds (60.67KB/sec) ; Fetching #<URL "http://beta.quicklisp.org/dist/quicklisp/2011-01-10/releases.txt"> ; 111.77KB ================================================== 114,451 bytes in 0.29 seconds (388.06KB/sec) To load "usocket": Install 1 Quicklisp release: usocket ; Fetching #<URL "http://beta.quicklisp.org/archive/usocket/2011-01-10/usocket-20110110-svn.tgz"> ; 54.77KB ================================================== 56,082 bytes in 0.35 seconds (157.37KB/sec) ; Loading "usocket" [package usocket].. *** - Program stack overflow. RESET ;; swank:close-connection: NIL [2]> I might have done any stupid mistake, I'm a CLISP/Emacs newbie. Any help is appreciated. Thanks in advance.