Has a low impact on Windows user programs and system resources, allowing it to serve documents with little slowdown. It does not require installation of Win32s. Memory requirements are modest, and fluctuate according to the number of simultaneous requests being handled.
All network I/O is done asynchronously, per the WinSock recommendations (see Windows Sockets Compliance), and a generous amount of processor time is given to the Windows system.
When running in multi-threaded mode with a compliant WinSock package, the server can deliver about 8 requests per second (4KB average document size). This was measured on a 486DX/66 with 8 MB memory, VL-bus Ethernet and disk controllers, Windows for Workgroups 3.11, Netmanage Chameleon 4.0 TCP/IP package.