Hi Rob: There is already a ControlX10:: top namespace. You would be welcome to join that one. I've downloaded your first package and will look for possible conflicts in naming. Bruce Winter and I have used CM11 and CM17 so far - but others are in development. The ControlX10:: namespace was arrived at after extensive discussion back in September (and will be discussed in a forthcoming article in The Perl Journal). It is in section 5 of the Module List. -bill