import binary data from webservices and create a local file

didier

Hello
This my first post sorry for my poor english.

I receive binary data encoded in base 64 from a webservice and I would like to create the a new local file with the data.
(The final solution is received binary data, create local file with this binary data and add to record link)
Data is received in a variable bigText, i ve create a function :

CreateDoc(flowin bigtext,filename text(250))

CREATE(AdoStream);
AdoStream.Type := 2;
AdoStream.Open();
AdoStream.Write(flowin);
AdoStream.SaveToFile('c:\temp\'+filename);
AdoStream.Close();
CLEAR(AdoStream);

And the error is :
Call failed Member Write: The arguments are the wrong type, out of acceptable range or in conflict with each other.

Other solutions? import in blob?

What's wrong?
Thank you in advance

kine

Make stream from the BigText, decode it, write it into file. WHere is the problem? :-)