Virtual Serial Port - Create Virtual Serial Port

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Complete emulation of real serial ports

Sometimes you may need to use more serial ports than are physically available in your system. An easy way to add more COM ports is using Virtual Serial Port Driver, which creates virtual serial ports and a virtual null modem cable for each pair of them (which connects two virtual serial ports to each other).

This software solution works smoothly, allowing you to emulate as many serial ports as you want while supporting all the settings and signal lines as if those were real COM ports.

Highlights

All Features

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VSPD offers you a number of advantages:

Easy way to add more COM ports in the system

The solution is software-based, so you don't have to tackle extra cables and occupy real COM ports. Virtual serial ports fully emulate real ones, so that an application communicating with a virtual port never suspects the difference. Moreover, using virtual ports is often more convenient than using real ones since virtual serial port connection offers unmatched stability.

Unlimited number of serial ports

The good thing is that Virtual Serial Port Driver can create as many pairs of virtual serial ports as required: whenever you need, just add another pair of virtual ports, connected to each other via virtual null modem cable. Any data sent to a virtual port is automatically copied to the other port in the pair.

Full emulation of real COM port settings

Virtual serial ports created by Virtual Serial Port Driver are indistinguishable from real ones, so any application that need to communicate via serial interface can use virtual COM ports for that purpose.

Each pair of virtual serial ports supports all hardware signal lines and allows you to set any type of line connection, which is quite useful, especially if some application demands special options of signal line connection.

If your application requires fixed speed compatibility, you will fully appreciate baud rate emulation offered by Virtual Serial Port Driver.

Full features list:

Any number of virtual serial ports pairs can be created
Virtual serial ports are absolutely the same copies of real ones - applications won't see the difference between real and virtual serial ports
Virtual serial ports can be controlled directly from your own application via Dynamic Link Library supplied with VSPD (for OEM License owners)
Link between virtual serial ports is much faster than real null-modem cable connection and solely depends on your processor speed (average transfer speed is about 5.5 Mbytes/sec)
Real serial ports are not occupied - you can even have no real ports in system at all
Strict baudrate emulation (for Windows NT4/2000/XP/2003/Server 2008/Vista/Windows 7)
All signal lines are available: DTR/DSR/CTS/RTS/DCD/RI
Full support of HandFlow control (Hardware and Xon/Xoff)
Virtual serial line connection break emulation (for Windows NT4/2000/XP/2003/Vista/Server 2008/Windows 7)
Different virtual null-modem schemes are available: standard/loopback/custom (for Windows NT4/2000/XP/2003/Vista/Server 2008/Windows 7)
Virtual serial port may have any name you like, even the same name as real port has
Ports are automatically re-created on system reboot (prior to user login)
Possibility to change names of virtual serial ports, created by VSPD, shown in Device Manager
Restriction of access to created virtual ports for various applications (for Windows 2000/XP/2003/Vista/Server 2008/Windows 7)
Virtual Serial Port Driver and all of its internal drivers are digitally signed
Complete information about current virtual serial port state, sent/received data, etc (for Windows NT4/2000/XP/2003/Vista/Server 2008/Windows 7)
Windows kernel driver technology support (WDM, WMI, Power Management, PnP, etc)
Printers can be assigned to any virtual serial port (available after Windows reboot)
Hyper-threading and VMware friendly
No reboot is required after VSPD installation, creation and reconfiguration of virtual serial ports

Demo version limitations:

14-day fully-functional trial

Compatible with:

Windows 98 SE
Windows Me
Windows NT 4.x
Windows XP 32-bit
Windows 2000
Windows XP 64-bit
Windows 2003 32-bit
Windows 2003 64-bit
Windows 2008 32-bit
Windows 2008 64-bit
Windows Vista 32-bit
Windows Vista 64-bit
Windows 7 32-bit
Windows 7 64-bit

Interface languages:

OEM LICENSE

for Virtual Serial Port Driver

Why OEM?
OEM License permits you to embed Virtual Serial Port Driver technology into your own software or hardware products.

OEM license grants you the right for unlimited redistribution of Virtual Serial Port Driver as an integral part of your software. OEM license is a royalty-free one-time purchase.

Purchasing the OEM license you get:

OEM documentation on how to work with our driver directly
Example for creating a class which demonstrates the possibility to create the ports like in VSPD (visible and invisible ports)
vspdctl.DLL - wrapper for a driver for manipulations with virtual serial ports on a higher level

How to evaluate the OEM license
To let you evaluate the OEM license before purchasing, we are ready to send you the OEM Evaluation Kit, so you can try integrating Virtual Serial Port Driver into your project. The documents will be sent to you upon your request.

Supported IDEs
You will be able to use Virtual Serial Port Driver OEM license in the following IDEs: Borland Delphi, C++ Builder, Microsoft VC++, Microsoft Visual Basic, Visual Basic.Net, Visual Studio C#, Visual C.Net, some other "exotic" IDEs which our clients randomly report us about.

SOURCE CODE LICENSE

for Virtual Serial Port Driver

Ordering Source Code license for Virtual Serial Port Driver you receive all extensively commented programming source code of the driver (GUI sources are not included). In addition, we provide technical and information lifetime support by email, IMs and phone, and high-end consulting services. Our leading developers will help you implement Source codes and understand the advanced part of the product.

SITE LICENSING

for Virtual Serial Port Driver

Unlimited Site License grants you the right to install and utilize Virtual Serial Port Driver application with GUI on unlimited number of computers by all workers of your company worldwide. It is the ideal solution if your company has representation offices in the different parts of the world.

If you know the certain number of computers to be equipped with VSPD you may consider obtaining Limited Site License. The advantage of Site Licensing comparing to multiple Single licenses is one license key for all company computers.

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Virtual Serial Port Driver

Create virtual serial ports and connect applications over them