Pretty sure sp_OACreate is limited to an NVarchar(4000) max parameter;
I had written something in SQL 2000 which harvested web pages, and had to grab slices of the results from my Inet object in slices of 4K characters.
here's a link to that old thread:
http://www.sqlservercentral.com/Forums/Topic453789-5-1.aspx?Highlight=WebReader
Lowell
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