It's been awhile now since I downloaded WAMP and setup php_printer, so I can't say for sure whether when I uninstalled 64bit, and reinstalled the 32bit WAMP whether I had to install php_printer or not, I seem to remember not having to install it, just set the config file to load it on power up, but in checking my ext folder, php_printer.dll does have a different date, so I must have installed it.
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