Unlimited development environment for non-commercial works vc++ 7.0 (MFC) / windows 2003 sp1 / iis6.1 Main functions: 1 Anti-hotlinking 2 Limit the number of file download threads 3 How to limit file download speed: 1 Open Internet Information Services (IIS) Manager/Local Computer/Website/Default Website/Properties/ISAPI Filter/Add 2. Select the relink.dll you decompressed with a random name. 3 Restart IIS 4 Open ReLink.ini