Maximum Number of LPT and COM Ports (100111)
The information in this article applies to:
- Microsoft Windows NT Server 3.1
- Microsoft Windows NT Workstation 3.1
This article was previously published under Q100111
The maximum number of COM and LPT ports that Windows NT supports is 256.
This is a limitation in Control Panel and does not represent a
limitation of the hardware platform. In both Intel x86 and MIPS
machines, the number of COM and LPT ports is only limited by available
interrupts, I/O addresses and, ultimately, 4,294,967,295 (32 bits).
| Modification Type: | Minor | Last Reviewed: | 5/4/2005 |
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| Keywords: | kbother KB100111 |
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