Windows Serial Comm Lib for VB - Developer Tool

Visual Basic RS232/R485/RS422 serial port communications library.

**FREE DOWNLOAD (v5.4)** File Size: 1680KB | Safe & Verified
Programming VB Components Shareware

Key Features

  • Serial communications Visual Basic library for RS232 and multi-drop RS485 and RS422 serial ports.
  • Provides capability to easily develop Visual Basic and .NET applications that access data from any serial port device.
  • Supports 256 ports, control multiple ports simultaneously, modem control, virtual serial ports (USB to serial, Bluetooth serial), port re-entrant, hardware/software flow control, serial line status & control.

Technical Specifications

  • **Publisher:** Marshallsoft.com
  • **License:** Shareware
  • **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
  • **Last Updated:** October 15, 2025
  • **Category:** Programming / VB Components

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