whitesports/app/wp-content/plugins/nextend-face.../providers/microsoft/microsoft.php

<?php

class NextendSocialProviderMicrosoft extends NextendSocialProviderDummy {

    protected $color = '#2F2F2F';

    public function __construct() {
        $this->id    = 'microsoft';
        $this->label = 'Microsoft';
        $this->path  = dirname(__FILE__);
    }
}

NextendSocialLogin::addProvider(new NextendSocialProviderMicrosoft());