File list (Check if you may need any files):
includes
........\modules
........\.......\payment
........\.......\.......\1back
........\.......\.......\.....\wxpay_back.php
........\.......\.......\wxpay.php
languages
.........\zh_cn
.........\.....\payment
.........\.....\.......\wxpay.php
mobile
......\includes
......\........\init.php
安装说明.txt
wxpay
.....\cacert
.....\demo
.....\....\download_bill.php
.....\....\js_api_call.php
.....\....\logd.log
.....\....\log_.php
.....\....\native_call.log
.....\....\native_call.php
.....\....\native_call_qrcode.php
.....\....\native_dynamic_qrcode.php
.....\....\notify_url.log
.....\....\notify_url.php
.....\....\order_query.php
.....\....\qrcode.js
.....\....\refund.php
.....\....\refund_query.php
.....\payfeedback
.....\...........\index.php
.....\SDKRuntimeException.php
.....\WxPayPubHelper.php
.....\WxPayPubHelper_back.php