How to exe OS command from sqlplus

I used to exe OS command with ! in sqlplus in older version of Oracle. I just installed 10g Express and I tried !dir, and got the following error:
SQL> !dir
SP2-0042: unknown command "!dir" - rest of line ignored.
Did I do something wrong?

host seems to work in special cases
On Microsoft Windows XP
where dirme.bat contains
dir
host d:\path\to\dirme.bat
results in output of dir
whereas host dir
results in an exception java.lang.ProcessImpl.create(Native Method)
at oracle.dbtools.raptor.scriptrunner.commands.Host.handleEvent(Host.java:30)
Works in Linux (for host ls)
Could be a path/built in dos command problem.
What is other peoples experience?
-Turloch

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Message was edited by:
ragas

How to exe OS command from sqlplus

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