source: http://www.securityfocus.com/bid/1024/info

A GET request containing over 4080 characters will cause the httpd.exe process to crash within Netscape Enterprise Server 3.6, resulting in a Dr. Watson error. Arbitrary code can be executed remotely at this point. 

Netscape Enterprise Server 3.5 running on either Netware or Solaris is not known to be susceptible to this issue.

GET /(4080 character string) HTTP/1.0