Hi, I am trying to generate an executable from a Scheme file: ;; hello.ss (display "hello world") (newline) On Ubuntu Linux (11.4, 32bit) with Gambit v4.2, I tried the following command: $ gsc -o hello -exe hello.ss It failed with a warning "misplaced option -exe". On Windows 7 (64bit) with Gambit v4.6.1, I get the following error: $ gsc -o hello.exe -exe hello.ss Access is denied. Access is denied. Access is denied. *** ERROR IN ##for-each -- No such file or directory (delete-file "C:\\Users\\VMathew\\Desktop\\hello.o") On both machines the gcc compiler is installed and is working properly. I am following the directions at http://www.iro.umontreal.ca/~gambit/doc/gambit-c.html#GSC What could be going wrong? Thanks, --Vijay