Why do friends automatically send expressions to others when they send messages to me?

This may happen to many people. I don't know what happened. It happened while chatting with a friend on QQ. When you first open the chat dialog box with your friends and send the first sentence, sometimes your friends will tell you that "the picture is not displayed" ... but you don't send any custom pictures at all ... paranormal phenomenon? Virus? Actually, it's not. Let's explain this phenomenon ... to be sure, this is not a virus or Trojan horse, although this phenomenon only occurs in the unofficial version of QQ ... It feels really scary, hehe ... The reason why this phenomenon occurs is because you installed the third-party QQ assistant program FinePlus. Or the third-party optimized QQ client you are using integrates this FinePlus auxiliary program (such as sending QQ to the United States). In order to detect the IP addresses of QQ friends more effectively and quickly, FinePlus will establish a new dialogue window with friends whose IP addresses are unknown at present. Automatically add a transparent picture with the size of 1* 1 (because sending a custom picture can effectively detect the other party's IP), and turn this option on by default in FinePlus ... So, when the network connection between you and your friends is not effective, this small picture of 1* 1 should be transparent, but it can't be displayed on the other party. The other party will see the custom picture that can't be displayed, and mistakenly think that you sent it to him ... Personally, this is an operation that doesn't make much sense, so the operation to cancel this function is as follows: right-click on the toolbar at the top of the chat window, and select IP Settings → Place blank thumbnails → Disable in the pop-up FinePlus option menu. You can turn off this "psychic" operation. Hehe ... Of course, if you think this option is necessary, you can choose other options according to your own situation. In short, at least now you know the reason, don't worry about Trojan horse or virus ...: p But note, if you are using Tencent's official QQ version, and you are sure that no third-party auxiliary programs such as FinePlus are installed, then if your QQ appears in a similar situation, ...