PEAR Installation

PEAR = PHP Extension and Add-on Repository

After you have downloaded and installed PHP, you have to manually execute the batch file located in e.g. c:\php\go-pear.bat. The setup will ask you some questions and afterwards the PEAR Package Manager will be installed in the path, which you have specific during installation.

Finally you have to add that installation path to your PATH environment
(Start > Control Panel > System > Environment).

After that you can access the PEAR Package Manager by running the command pear in a Windows Command Prompt.

To update your PEAR installation from go-pear.org, request http://go-pear.org/ in your browser and save the output to a local file go-pear.php. You can then run

source:
http://pear.php.net/manual/en/installation.getting.php