add-in option string length

[TimGrun]

I have an add-in where one of the options can have a long string length.
When the add-in was called with the option receiving a string of length 777, the add-in worked fine.
When passing a string of length 4000 to the add-in option, the add-in returned an error message of mis-matched parenthesis.

I tried changing the alpha-truncation to a large number, but it won't allow large values.

What can I do?

Thanks,
Tim

[EViews Gareth]

I'm surprised even 700 worked. Options aren't intended to be that long!
Arguments might be able to handle 4000 though.