This is the README for PuTTY, a free Win32 Telnet and SSH client. If you want to rebuild PuTTY from source, we provide three Makefiles: - Makefile.vc is for MS Visual C++ systems. Type `nmake -f Makefile.vc' to build all the PuTTY binaries. - Makefile.bor is for the Borland C compiler. Type `make -f Makefile.bor' to build all the PuTTY binaries. - Makefile.cyg is for Cygwin / mingw32 installations. Type `make -f Makefile.cyg' to build all the PuTTY binaries. Note that by default the Pageant WinNT security features and the multiple monitor support are excluded from the Cygwin build, since at the time of writing this Cygwin doesn't include the necessary headers. If you have MS Visual Studio version 6 and you want to build a DevStudio project for GUI editing and debugging, you should be aware that the default GUI configuration of the compiler falls over on the nasty macros in ssh.c. This is a bug in Visual Studio. The culprit is the /ZI compiler option (debug info generation: Edit and Continue). To avoid this problem while compiling PuTTY under VS6, you should: - right-click ssh.c in the FileView - click Settings - select the C/C++ tab and the General category - under `Debug info:', select anything _other_ than `Program Database for Edit and Continue'. Alternatively disable the /ZI option, replacing it with a saner value, such as /Zi. All of the Makefiles are generated automatically from the file `Recipe' by the Perl script `mkfiles.pl'. Additions and corrections to Recipe and the mkfiles.pl are much more useful than additions and corrections to the alternative Makefiles themselves. The PuTTY home web site is http://www.chiark.greenend.org.uk/~sgtatham/putty/ Bug reports and feature requests should be sent to . PLEASE read the section on the web site about how to report bugs effectively. Do NOT send one-line reports saying `it doesn't work'! See the file LICENCE for the licence conditions.