User Management in SCADA is a Complex Activity. Users of SCADA will need to have Windows Access to Manage Users. Generally on SCADA PC, Windows is not accessible. What to do in that situation? Zelenka Windows User Management Application is a Standalone Application through which User Management can be done without accessing Windows Environment. When ever User gets Created or Edited or Deleted or Permissions of User are Modified, Application accesses Windows Registry and also keeps Audit Trail of the Changes. This Application helps in keeping Audit Log of the Changes.