Virtual Serial Port Driver

Fully emulate real serial port
Create virtual COM port pairs

In November 2009 get Premium Technical Support Package
[1-year subscription] for FREE with OEM, Site or Source Code license!

Related Products
Case Studies

Client: Bjørn Krangnes

"We are using Virtual Serial Port Driver for testing out Geographic Information System software connectivity with a virtual GPS (software simulation). The GPS emulator is simulating the output we normally receive from a GPS navigator."

read full review...
Build Info
File size:
3.01Mb
Latest build:
6.9.1.134
Release date:
22nd May, 2007
Build compiled:
5th August, 2008
Compatible with:
 
 
 
User ManualChangelog (RSS)
Want to upgrade? I have ver UPGRADE NOW
virtual serial port - virtual com port

Create virtual serial port pairs

Virtual Serial Port Driver creates virtual serial ports and connects them in pairs via virtual null-modem cable. Applications on both ends of the pair will be able to exchange data in such a way, that everything written to the first port will appear in the second one and backwards.

All virtual serial ports work and behave exactly like real ones, emulating all their settings. You can create as many virtual port pairs as you want, so there will be no serial ports shortage and no additional hardware crowding your desk.

Moreover, Eltima virtual serial port technology can be fully integrated into your own software (OEM license).

virtual serial port

Virtual Serial Port Driver main features:

Create any number of virtual COM ports

Virtual Serial Port Driver provides you with the ability to create an unlimited number of virtual serial ports. Created ports are located in "ports" group in Device Manager, which means that they will be visible and easily recognized by all software and hardware you install. You will be able to set which application has access to the defined port. No real hardware serial ports are occupied.

virtual COM port

Complete real ports settings emulation

Virtual ports, created by Virtual Serial Port Driver, work exactly like real ones. They emulate all real serial ports settings and provide strict baudrate emulation and full HandFlow control support. Additionally, you can easily emulate a serial line break. Moreover, VSPD uses advanced Windows kernel driver technology, which ensures WDM, WMI, Power Management, PnP, etc. support. Virtual Serial Port Driver is fully compatible with API COM and supports all Windows messages.

virtual rs232 port

Manage all signal lines

Virtual serial ports created with Virtual Serial Ports Driver emulate and support all standard hardware signal lines (DTR/DSR, RTS/CTS, RING, ERROR, DCD, etc.). As in real null-modem connection, DTR of the local port is connected to DSR and DCD of the remote port, and RTS of the local port is connected to CTS of the remote port. Moreover, you can choose loopback pinout or create custom one depending on your hardware configuration.

Full features list:

  • Virtual serial ports are absolutely the same copies of real ones - other applications will never see the difference between real serial port and virtual serial port
  • Virtual serial port can have the same name as real serial port (virtual serial port overlapping). In case of overlapping, the real serial port you overlap will be replaced with the virtual one
  • Full support of HandFlow control (Hardware and Xon/Xoff)
  • You can manage all signal lines (DTR/DSR/CTS/RTS/DCD/RI)
  • Different virtual null-modem schemes are available: standard/loopback/custom (for Windows NT4/2000/XP/2003/Vista)
  • VSPD uses advanced Windows kernel driver technology (supporting WDM, WMI, Power Management, PnP, etc.)
  • Strict baudrate emulation (for Windows NT4/2000/XP/2003/Vista)
  • Create virtual serial ports with any names which will be displayed in Device Manager (not only COMx)
  • Easily manage port access list, which is used to restrict access to created ports for various applications (for Windows 2000/XP/2003/Vista)
  • Easily emulate virtual serial line connection break (for Windows NT4/2000/XP/2003/Vista)
  • Virtual Serial Port Driver is completely compatible with Windows Vista, 32-bit and 64-bit editions
  • "Hot" virtual ports installation - no reboot required after installation, creation or reconfiguration of virtual serial ports
  • Virtual Serial Port Driver and all of its internal modules are digitally signed
  • You can create as many virtual serial port pairs as you want
  • You can control virtual serial ports directly from your own application using Dynamic Link Library supplied with Virtual Serial Port Driver
  • Real serial ports are not occupied (actually, you can even have no real serial ports in your system and work with virtual ones)
  • 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 35-40 Kbytes/sec
  • Virtual link is much more reliable than common physical link
  • Printers can be assigned to any created virtual serial ports
  • Get complete information about current virtual serial port state, sent/received data volumes, and other options (for Windows NT4/2000/XP/2003/Vista)
  • Ports are automatically re-created on system reboot (prior to user login)
  • Hyper-threading and VMware friendly
  • User-friendly and convenient program interface
  • Completely new reworked and redesigned Serial Ports Explorer, which helps you get full information about all serial ports used in system

Demo version limitations:

  • 14-day fully-functional trial

Interface languages:

English

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
Premium Technical Support Package for FREE (usually costs 50% of license price) with OEM, Site or Source Code License purchased in November 2009. More info >>

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.