This tip contains information on using Vim over PuTTY. PuTTY is
a terminal emulator for Windows. It is commonly used as an SSH
client to connect to a Unix-based server using the secure shell
protocol. Console Vim (not gvim) can be run on the server, using
PuTTY as the terminal. PuTTY acts as an xterm. Check your
settings or just echo $TERM at the command prompt on most Unix
systems to verify the xterm type. Using the numeric keypadEdit
Why do letters show up when I try to enter numbers from the
keypad? Why doesn't the numpad work as expected? Why does the
NumLock key bring up help.txt? These confusing things happen
when PuTTY is in "application keypad mode". PuTTY can be
configured so that keys on the numeric keypad (including
NumLock) will send an escape sequence ("application keypad
mode"), or will behave as a standard number pad (when NumLock is
on, send the characters [0-9/*-+.]; otherwise, send the codes
for the cursor movement keys). For use in Vim, you want to
disable application keypad mode: - Run PuT