While opening NSF files through double clicking if you get errors like: ?you are not authorized to access that database? or ?lotus notes has local access protection and you are not authorized to access that operation?. At that situation we will suggest you to invest in SysTools Securase software that allows users to access NSF database and to open Lotus Notes database without any data risk. Using Lotus Notes security removal tool you will able to access NSF database and to open Lotus Notes database without any restrictions. You can safely open secure NSF files with Securase that supportive to all versions of Lotus Notes (8.0, 7.0, 6.5, 6.0, and 5.0). As a user you can avail this free securase.exe download software. Though the utility is in free demo version and fully functional, but does not allow users to remove security from all NSF files. You would require purchasing the FULL operative version of this securase.exe software at only 49 USD and 99 USD for personal and business license respectively.