If you are creating a batch file containing a series of VSS commands (to run overnight, for instance), you don't want the program to pause in the middle to ask you a question. There are three command-line parameters you can use together to ensure that VSS does not prompt a user for input.
By default, VSS prompts you for a comment on many commands such as Add and Check In. However, you can use the -c option in the following three ways to avoid this prompt.
| Command | Action |
| –c– | No comment is added. |
| "–cHello" | Uses the string Hello as the comment. |
| -c@COMMENT.TXT | Uses the contents of the file Comment.txt as the comment. |
In addition to prompting for comments, VSS frequently asks yes or no questions. You can use the -i option to avoid these questions, as in the following examples.
| Command | Action |
| -i-y | Automatically answers Yes to all Yes/No questions. |
| -i-n | Automatically answers No to all Yes/No questions. |
| -i | Use the default. |
VSS may also prompt for a logon name. If you receive this prompt, you can use the -y option to supply the necessary information.