xp_delete_file not removing old backups

Question

This command is not deleting backups:

EXEC xp_delete_file 0,N'F:\path\cms',N'*.bak',N'2014-01-30T21:08:04'

Also tried

EXEC xp_delete_file 0,N'F:\path\cms',N'bak',N'2014-01-30T21:08:04'

and

EXEC xp_delete_file 0,N'F:\path\cms',N'.bak',N'2014-01-30T21:08:04'

SQL Server Agent has permissions on the folder.

Answer 1

Solved: Both users for agent and sql server service need read/write/delete permissions on the backup folder.