Stack-based buffer overflow in the EnumeratePrintShares function in Windows Print Spooler Service (win32spl.dll) in Microsoft Windows 2000 SP4 allows remote printer servers to execute arbitrary code via a a crafted ShareName in a response to an RPC request, related to "printing data structures," aka "Buffer Overflow in Print Spooler Vulnerability."

More... (http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-0228)