How to simulate HOST command from DB Procedure

Hi,
I'm using Oracle 9.2 database on Win2000 PC.
I need to start .bat file from a database procedure. More generaly how to simulate HOST command that I'm using from Forms6i.
Thanks,

Thanks for the reply,
But, I am able to successffuly execute HOST from SQL+
only from the PC where the database is, not from the client. My .bat file is on the server side.
From the procedure I was not able to run it in either cases
Procedure TEST
IS
BEGIN
EXECUTE IMMEDIATE 'host C:\MYBATCHFILE.BAT'
END;
returns ORA-00900 INVALID SQL STATMENT
with EXECUTE IMMEDIATE '$ C:\MYBATCHFILE.BAT' returns Invalid Character Error.
BR,

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