New: 128-bit enhanced security version released (for U.S./Canada use only)
New in Security Update 8/2/01: This Security Rollup Package (SRP) is a cumulative update for Windows NT 4.0 that includes every fix that has been released for winNT 4 since the release of Service Pack 6a (SP-6a). SP-6a must be installed before installing the security update. A list of the 70+ fixes in this update can be found here. Upgrade Meter: 2
New in SP-6a: Bug fix that corrects a problem that would prevent Lotus Notes and some other Winsock applications from working properly; Release Notes Upgrade Meter: 2
New in SP-6: More than 240 bug fixes for Windows NT Base Operating System, Networking, Shell, and Security components, more Y2K fixes, Integrated Internet Explorer 5.0a (on CD-ROM release); Release Notes Upgrade Meter: 4
New in SP-5: More Year 2000 (Y2K) fixes, cluster server updates, fixed Microsoft Exchange/RAS issue and Exchange Protocols Failure issue, updated reservation management with DHCP Servers, improved updating of MTS files, integrated IE 4.01 SP2 Upgrade Meter: 4
New in SP-4: Year 2000 (Y2K) fixes, Euro Key Patch for support of the new European "euro" currency symbol, DCOM/HTTP Tunneling TCP protocol, InternetGroup Management Protocol (IGMP) v2, Microsoft File and Print Service for NetWare Support for Client32, Remote Winsock, Routing Information Protocol (RIP) Listener, Message Queue (MSMQ) for Windows 95 Client; updates for MS Transaction Server, Certificate Server, Index Server, and IIS; PPTP performance and security update; includes IE 4.01 SP1, NetShow Services 3.01, and Windows Media Player; a TON of bug fixes; Complete Release Notes Upgrade Meter: 5
Pros: An essential upgrade for users of the Alpha and Intel Windows NT 4.0 platforms
Cons: Not necessary for Windows 3.x or Windows 95/98/2000
