Manual database startup on WinXP

I installed an oracle 9.2 database for testing purposes on WinXP. Because I don't need it very often, I switched all the oracle services to "manual start".
I'm not the mouse-clicking-fan, so I'm looking for a script "batch file or vb-script" like dbstart / dbshut on Unix installations. The script should do:

• start the listener
• startup the database
• start the http server

Starting the listener is easy in a dos box. But when I try to connect to the idle database by doing:
sqlplus "/ as sysdba"
I only get an "ORA-28009: Generic protocol adapter error"

Is there a possibility to start up and shutdown database, listener and http server by script on WinXP or is it just not supported?

Thanks in advance,
Ralf

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