Putty has incredibly bad defaults. The main issue crops up when trying to use it to interact with z/VM programs that require lots of function keys.
Getting putty to cooperate with tmux and c3270 and have F1-F24 all work requires many settings to be just right.
I troubleshot this using the following commands:
infocmp -I $TERM
showkey -a
| # Using this method is preferred over powertoys because it will also work with | |
| # remote desktop and vmware. | |
| # | |
| # https://superuser.com/questions/949385/map-capslock-to-control-in-windows-10 | |
| # | |
| # Setting an execution policy might be necessary to run powershell scripts. | |
| # see: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_execution_policies?view=powershell-7.4 | |
| # Set-ExecutionPolicy -ExecutionPolicy <PolicyName> -Scope <scope> | |
| # For example: | |
| # Set-ExecutionPolicy -ExecutionPolicy Bypass -Scope Process |