return value of Stored procedure for MSSQL 2005 server

Hi All,

    I am using freetds 0.64 (with UnixODBC as driver manager). I am using
SQLProcedureColumns API to retrieve the metadata of the parameters and
return value of the stored procedure. This works fine for MSSQL server 2000.
But, when I am trying to retrieve the same for MSSQL 2005, I am getting the
metadata for all the parameters of stored procedure except for the return
value of the Stored procedure. Hence, I am unable to obtain the return value
of the stored procedure.

Or Simply How can I retrieve the return value of the stored procedure (in
MSSQL 2005 ) using freetds 0.64 ?

Thanks in advance
nitinsayare