Perle Systems Limited
Perle’s TruePort is a COM port re-director driver utility.
Direct Zip Driver is an file manager, archiver and virtual disc mapper.
HW Virtual Serial Port allows creating virual serial port drivers.
Hard Drive Test Pilot 2.6 searches for errors on the hard drives and files.
Displays, logs and analyzes all serial port activity in a system.
REALTEK Semiconductor Corp.
USB card reader driver for Win XP/Vista/Win7 Driver (32/64 bits) Driver only (ZIP file).
A freeware port scanner, written completely in Java. NoJ/Direct no native calls anywhere.
TVicPort is a toolkit for direct port I/O from Win32 applications.
ELTIMA Software GmbH
Virtual Serial Port Driver creates virtual serial ports.
Direct I/O is the world's first device driver for Windows NT, Win 2000, Win XP.
Free, unrestricted Virtual Serial Port driver for any TCP/IP devices.
Sollae Systems Co.,Ltd.
ezVSP is a virtual serial port driver and TCP/IP socket program.
dbExpress driver for SQLite provides direct access to SQLite databases.