There are multiple BD versions out there, Antivirus is just the AV program, Internet Security is AV and Firewall Antispam Parental controls etc. Then there is total security which includes defrag, registry cleaner etc. I currently am running the trial version of TS but I also have an active license for IS which will expire soon. If I get a license for one of the lesser versions (AV or IS) are there any other security apps that will work to fill in the missing holes? For example if I want my own firewall and get the basic BD Antivirus, are there any that will not conflict with BD? If I want my own registry cleaner and defrag and get IS, are there any programs that do not conflict with its operation? Or is it just recommended to buy TS and use that exclusively so there are no conflicts. Dont really like the defrag and registry cleaner here thats why i was wondering.