I am having problems with backing up databases on our network. They rarely backup and usually return an open file error and are skipped during the backup process. There is an advanced open file option that can be selected and I want to give this a try. When I tick "Use Advanced Open File Option" only one option is available, "Microsoft Volume Shadow Copy Service". The other three options are greyed out. Does this mean I have not purchased the addon? Will the advanced open file option work OK using VSS?