That's incorrect. The archive feature's path command supports any IOS-supported file system ftp, tftp, http, etc.http://www.cisco.com/en/US/docs/ios/fundamentals/configuration/guide/cf_config-rollback_ps6441_TSD_Products_Configuration_Guide_Chapter....

Did you read the article I posted? The IOS config archive feature is so much more robust than redirecting the output of a "sh runn."

Ivan Pepelnjak wrote an excellent article on using the IOS configuration archive for automated config backups:http://www.nil.com/ipcorner/RouterConfigArch/