for instance, if you have the file checked out overwriting the file may destroy your work.Controls what happens when you attempt to get or check out a file on top of a writable file. The default is Ask.
Replace_Writable = {Merge|Replace|Ask|Skip}
Instructs VSS not to overwrite writable files:
Replace_Writable = No
When you get or check out a file, VSS copies the file into your working folder. If there is already a writable (non-read-only) copy of the file in your working directory for instance, if you have the file checked out overwriting the file may destroy your work.
VSS provides four ways to handle this situation.
Merges any differences between the master copy of the file and the file in your working directory into your working directory copy. This is useful when you want to ensure that you are getting changes from other users and you have the file checked out. If you have this option set and don't have the file checked out, VSS automatically treats the file as if you had the Skip option set. Replaces the file. Gives you an option each time VSS encounters this situation. Does not replace the file, and does not generate an error.You can also set this variable in your SS.INI file by using the Replace Other Writable Files option on the Local Files tab in the SourceSafe Options dialog box.
Use the Replace_Checkout initialization variable to control how VSS treats writable files in your working directory when you get or check out files that you previously checked out.