work@vvaradhan-lap:~/cvs/gnome2/evolution-sharp/evolution> gdb mono --args TestBook.exe GNU gdb 6.4 Copyright 2005 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i586-suse-linux"...(no debugging symbols found) Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /home/work/cvs/gnome2/evolution-sharp/evolution/TestBook.exe /bin/bash: /home/work/cvs/gnome2/evolution-sharp/evolution/TestBook.exe: cannot execute binary file /bin/bash: /home/work/cvs/gnome2/evolution-sharp/evolution/TestBook.exe: Success Program exited with code 01. warning: shared library handler failed to enable breakpoint You can't do that without a process to debug. (gdb)