IIS 5.0 allows remote attackers to obtain source code for .ASP files and other scripts via an HTTP GET request with a "Translate: f" header, aka the "Specialized Header" vulnerability.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A927
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-058
http://www.securityfocus.com/bid/1578
http://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind0008&L=ntbugtraq&F=&S=&P=5212