These are functions that are in User Function Libraries (UFLs). A UFL is a separate dynamic link library or Automation server that you create and Seagate Crystal Reports uses to add your own customized functions to the formula language. Writing a UFL is more involved than writing a formula using Basic or Crystal syntax. See Seagate Crystal Reports Developer's Help for more information.
Note: Using UFLs makes your reports less portable because you must distribute your UFL along with the report.
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