Problem with ODBC Connectivity for MSSQL

I am unable to configure ODBC for ejabberd. I am getting following error:

application:start(odbc).

{ok, Ref} = odbc:connect("DSN=ejabberd;UID=c2log;PWD=c2pass",[]).

RROR REPORT==== 2-May-2008::12:32:22 ===
ror in process <0.30.0> with exit value: {{badmatch,{error,port_program_execut
le_not_found}},[{erl_eval,expr,3}]}

exited: {{badmatch,{error,port_program_executable_not_found}},
[{erl_eval,expr,3}]} **

Can anyone help me.

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