SP2 Skill 2: Your IE also has this "the problem"?

Why does IE open some files in plain text





Phenomenon:





when you open a MP3 media file in IE with HTTP, the mp3 file appears as plain text.





Analysis:





This behavior is caused by a mismatch between the file's extension and content, or by a server-side reported content type and a mismatch between the file's extension or the content. To resolve this problem, you need to contact the administrator of this site.





Solution:





in Windows XP SP2 This is an enhanced security feature for IE-MIME handling enforcement. We do not recommend banning this security feature unless it is a forced choice. This security feature that prohibits IE can be modified by modifying the registry:





HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet


explorer\main\featurecontrol\feature_mime_sniffing





iexplore.exe:0 (REG_DWORD)





-or-





HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet


explorer\main\featurecontrol\feature_mime_sniffing





iexplore.exe:0 (REG_DWORD)





On the other hand, users can also modify security settings in areas that cause abnormal content to appear. This setting can be customized by modifying the custom level buttons in the security zone and modifying the ' Open files based on content, not file extension ' settings (enable/disable).





Why the Red Security Center icon appears on the task tray





the Windows XP SP2 Service Pack is installed, sometimes the Red Security Center icon appears in the task tray area, but sometimes it does not appear.




The
Security Center icon does not work normally, even if it is turned on manually, only green icons appear in the task tray area. Red appears, indicating that the current system has the following conditions:





Firewall is not enabled


Automatic Update is not enabled


virus protection software has expired (usually referred to as virus definition Library)