Pervasive

Hello, I'm using PSQL ver. 10.  In my pervasive software monitor utility, I often see variations of "SRDE:su" or "SRDE:anonymous" or "SRDE:Admin" under "Active MicroKernel Users:"..... What exactly are these "SRDE:..." users on my database?  And do they take up one of my available licenses?  Thanks!

 The short answer is that the "SRDE:..." users are the SQL engine.  As to the additional license they should not consume an extra license for existing users but should for a user using the SQL engine only.