What xp_sls_bcp extended store procedure?
Before version 4.5, there were two additional wizards in the Enterprise Console: Backup Table Wizard and Restore Table Wizard; used to backup an individual table, and then restore the data from that file.
These wizards were actually using SQL Server's bcp utility, so there was no compression or encryption. These wizards called a stored procedure xp_sls_bcp. The wizards have been removed (as of 4.5).
WORKAROUND:
If user is trying to restore an individual table from a full backup, he may be able to use Object Level Recovery (OLR).
If user is trying to just back up a single table, he can use the native SQL Server bcp.
All versions of SQL Server