PostgreSQL-Server doesn´t start

I would like to use PostgreSQL locally on my computer and have installed it. I use Windows 7.

I am not able to start the PostgreSQL-Server. When using the "Start Server"-program, I get the following output in the dos command window:

Start DoCmd(net start postgresql-8.4)...

System error 2 (my translati开发者_运维问答on)

System cannot find the specified file. (my translation)

Please ask, if I should give additional infos.

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Try starting it from your Services Applet of Control Panel.