2 Windows NT

This section describes the operating system-specific parts of OTP that relate to Windows NT.

A normal installation of Windows NT 4.0, with Service Pack 4 or later, is required for an embedded Windows NT running OTP.

2.1  Memory Use

RAM memory of 96 MB is recommended to run OTP on Windows NT. A system with less than 64 MB of RAM is not recommended.

2.2  Disk Space Use

A minimum Windows NT installation with networking needs 250 MB, and an extra 130 MB for the swap file.

2.3  Installing an Embedded System

Normal Windows NT installation is performed. No additional application programs are needed, such as Internet Explorer or web server. Networking with TCP/IP is required.

Service Pack 4 or later must be installed.

Hardware Watchdog

For Windows NT running on standard PCs with ISA and/or PCI bus, an extension card with a hardware watchdog can be installed.

For more information, see the heart(3) manual page in Kernel.

2.4  Starting Erlang

On an embedded system, the erlsrv module is to be used to install the Erlang process as a Windows system service. This service can start after Windows NT has booted.

For more information, see the erlsrv manual page in ERTS.