Can I install moodle 2.6 on EasyPHP, because I am using OpenBiblio 0.7.1 on EasyPHP server on windows.
I can't think why not. As long as it satisfies Moodle's basic requirements.
Yes we can install Moodle on EasyPHP, but if you have made changes in php.ini in order to install openbiblio then you need to check the moodle requirement page, if everything is ok! then you can able to install moodle easily.