How to Run Multiple WeChat Instances on PC Simultaneously
@echo off
cd C:/Program Files (x86)/Tencent/WeChat/
c:
start WeChat.exe
start WeChat.exe
exit

Save the above code as a .bat file, then double-click to launch it.
Attachment: https://www.cnop.net/uploadfile/2019/0903/20190903045622902.zip