Microsoft has posted the Windows 95 version of the patch for the Out of Band (OOB) data bug. This bug is caused when a malicious user sends a TCP/IP command to port 139 of a Windows machine and causes it to crash or hang. A patch for Windows NT is included in Service Pack 3. You can download the Windows 95 patch from the Nexus. For instructions on installing the patch, refer to the Knowledge Base article about the bug