I am trying to run a server side trace based on duration that will exclude rows that are null for that field.

If I add this as a filter it does not work. 

 declare @bigintfilter bigint
set @bigintfilter = null
exec sp_trace_setfilter @TraceID, 13, 0, 1, @bigintfilter

I also tried 

set @bigintfilter = 0
exec sp_trace_setfilter @TraceID, 13, 0, 1, @bigintfilter 

I get lots of nulls.  Yes, I have the @traceid prior:)

Any thoughts? or can this not be done

Try using:

set @bigintfilter = 0
exec sp_trace_setfilter @TraceID, 13, 0, 1, NULL

 Sorry.  That didnt work:( 

This should be easy!:(