Debra,

Your parameters in AT function are switched.
See
http://msdn.microsoft.com/en-us/library/h0zw37w7.aspx

You need

lnPosition = AT([fieldname="ADDRESS"],lcstring)

>I decided to bring the data in my xfdf file into my app using lcstring = filetostr(nys.xfdf)
>So now lcstring has all the data.
>
>
>I wrote a parsing routine to find a field, fieldname="ADDRES", remove the value of this field and replace the value with tccursor.address.
>
>Then I use strtofile(lcstring, nys.xfdf) to update the xfdf for display in my app using the adobe reader.
>
>
>**********************************************************************
>Everything seems to be working except the parsing.
>
>I use lnposition = AT(lcstring, fieldname="ADDRESS") to find the address field.
>
>lnposition is coming back 0.
>
>The len of lcstring looks good and the contents of lcstring looks good, too.
>
>Do you know what the problem is here?
>
>**********************************************************************
>
>
>>Neither displays XML correctly for different reasons. Why not use VFP MODIFY FILE command?
>>
>>
>>>If I open the file in the internet explorer, I see the dashes.
>>>
>>>If I open the file in the notepad, it looks like this:
>>>
>><snip>