Webutil host nonblocking blank file

Hi, I've used webutil_host.nonblocking( 'rundll32 url.dll,FileProtocolHandler ' || v_location||v_filename ); to call an .csv file.
first execute everything is fine...we can see data writed on that file.... but when we execute again, we just have a blank page .csv ...
does anyone know how we can fix it?
Thanks in advance,
Alwin

Hi
WebUtil has trouble with white space , but If you use the "?? character in palce of white space it will work:
fileName := replace(fileName,' ' ,'?');

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check for the following
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tk anyway.

So, i have try all these options and found that webutil seems to cut spaces.
As I have this
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