Extension_Association Initialization Variable
Associates a file extension with the editor that is used for viewing or editing a file and comments. This variable is only used for the command line utility SS (Ss.exe).
Syntax
<Extension_Association> = <editor executable file>
Remarks
Use this variable to override, for Visual SourceSafe only, the extension associations in Windows File Manager or Windows Explorer.
Examples
Sets the editor to WinHelp.exe when viewing files with the .hlp extension:
.hlp = winhelp.exe