這個文章我看過了
我有安裝像FlasGet的軟體

Q: My download manager appears to be detected, but when I try to download something I get this error message: "Download manager not properly installed.Incorrect function". What's happening?
A: Just what the message says: your download manager is not properly installed. More specifically, a COM component which FlashGot communicates with is missing or not properly registered. Sometimes, for instance, the Jccatch.dll FlashGet library gets deleted by overzelous (and wrong) antispyware softwares. Just reinstall your download manager, and possibly check your antivirus/antispyware settings to prevent this from happening again. FAQ 1.1 may help too.