For the purposes of this guide, a basic understanding of SSL certificates is assumed. IIS4 Web Server 2.1. They keep the product current, and extend and update your computer's functionality. Service packs include updates, system administration tools, drivers, and additional components. All are conveniently bundled for easy downloading.
Service packs are cumulative.
Each new service pack contains all the fixes from previous service packs, as well as any new fixes. You'll find the latest service pack for NT4.0 here . The CSR file is saved to your hard drive. A NET format file, which is your private key . The private key is represented by a key icon.