You can configure WinSCP to monitor a directory on the local machine and keep this synchronized with a directory on a remote machine. This allows you to edit and use other tools locally, and the changes will be reflected remotely.

1. Create a directory on the local system where you will work.
2. Create a directory on the remote system that you wish to keep synchronized with the local directory
3. Open WinSCP and start synchronizing folders
4. Edit on the local machine using the editor of your choice.
5. Compile on the remote machine using putty

1. In the WinSCP window, select Commands then Keep Remote Directory up to Date … *

WinSCP Documentation