It returns a CRC-16 checksum.

>I saw it, but there is no documentation of whether it is an exclusive-or checksum.
>
>>>What is the easist way to construct an Exclusive-or checksum of a character string?
>>>
>>>Is there a single command/program I can use, or do I need to process the string char by char >>and use a combination of BITXOR() and ASC() commands?
>>Hi Craig,
>>Did you have a look at SYS(2007,Cexpression)
>>regards