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291c1b07f2
In the very old days, when PuTTY was new and computers were slow, I tried to implement a feature where scrolling the window would be implemented using a fast rectangle-copy GDI operation, rather than an expensive character-by-character redraw of all the changed areas. It never quite worked right, and I ended up conditioning it out on Windows, and never even tried to implement it on GTK. It's now been sitting around unused for so long that I think it's no longer worth keeping in the code at all - if I tried to put it back in, it surely wouldn't even compile, and would need rewriting from scratch anyway. Disturbingly, it looks as if I _tried_ to re-enable it at one point, in that there was a '#define OPTIMISE_IS_SCROLL 1' in putty.h - but that never had any effect, because the macro name is misspelled. All the #ifdefs are for 'OPTIMISE_SCROLL', without the 'IS'. So despite appearances, it really _has_ been conditioned out all along!
PuTTY README
============
This is the README file for the PuTTY installer distribution. If
you're reading this, you've probably just run our installer and
installed PuTTY on your system.
What should I do next?
----------------------
If you want to use PuTTY to connect to other computers, or use PSFTP
to transfer files, you should just be able to run them from the
Start menu.
If you want to use the command-line-only file transfer utility PSCP,
you will probably want to put the PuTTY installation directory on
your PATH. On Windows 7 and similar versions, you can do this at
Control Panel > System and Security > System > Advanced system
settings > Environment Variables.
Some versions of Windows will refuse to run HTML Help files (.CHM)
if they are installed on a network drive. If you have installed
PuTTY on a network drive, you might want to check that the help file
works properly. If not, see http://support.microsoft.com/kb/896054
for information on how to solve this problem.
What do I do if it doesn't work?
--------------------------------
The PuTTY home web site is
https://www.chiark.greenend.org.uk/~sgtatham/putty/
Here you will find our list of known bugs and pending feature
requests. If your problem is not listed in there, or in the FAQ, or
in the manuals, read the Feedback page to find out how to report
bugs to us. PLEASE read the Feedback page carefully: it is there to
save you time as well as us. Do not send us one-line bug reports
telling us `it doesn't work'.