Specifies the extension used to create a backup file when merging. The default is .org, and this variable can be set only by editing SS.INI directly.
Backup_Ext = file extension used for merge backups
Sets .org as the extension to be used for backup files:
Backup_Ext = .org
When VSS merges a branch of a file and finds a conflict, it replaces the original file with a merged copy that flags all conflicts, so that you can resolve them. If you specify a backup extension, the original (pre-merged) file is saved with the extension specified in this variable.
For example, when checking in Myfile.cpp, VSS creates Myfile.org. It contains the contents of Myfile.cpp before VSS begins the check in, merge, or get operation.