To set any of the options listed in the table as the default for the Checkout command, use the Checkout_Comment initialization variable in Ss.ini. If you have set a default in Ss.ini, you can replace it for a particular command using the -C? option. You can set the Comment_Editor variable in Ss.ini to invoke an editor of your choice as an alternative to the prompt-driven method of entering comments that Visual SourceSafe uses.