On the right side there is a pane that display directories and files from the remote site. If I double click on a file it opens up in a text editor. If I edit the file and then save it it will up date the file on the server.
How do I make it so that if one tries to save a file there will either be an error or confirmation popup before the file is actually overwritten?
What opening of files do you mean?
Open files in Read Only mode...
Is there a setting in WinSCP to have it open files in Read Only mode?