Files cannot be uploaded in QQ mail

I usually use my QQ mail's file transfer station to upload some large files for my friends to download.

However, once you open the file transfer station, click File Upload. the upload interface is displayed, but clicking the "add file" button does not respond.

In addition, the file upload plug-in QQ mail only prompts installation when it is not installed. After installation, the plug-in fails, but cannot be uninstalled and cannot be re-installed.

What should I do if I want to use this function now?

Generally, this type of problem occurs because the class information in the registry is lost or overwritten by an error.

So I used the tool software to find out that the Upload Component of the QQ mailbox is txgymailactivex. dll under system32.

Click Start, Run, and enter regsvr32 txgymailactivex. dll.

After clicking "OK", the system prompts that the file is successfully registered.

Restart IE to restore the file upload function.