Virtual Serial Port Driver Xp and Virtual Serial Port Driver Xp4 Software for Windows

Virtual Null Modem
$74 - AGG Software

Null-modem cable is basically used for communication of two RS-232 DTE devices with each other. To create null-modem connection between the devices you need to use two computers or two serial ports of a single computer connected with null-modem cable. The both methods described above are expensive and difficult because of many reasons. The most reliable way to create null-modem connection is using of virtual serial ports emulated by virtual serial port driver and null-modem cable. Why do you need to emulate serial ports and null-modem connection? There are few main reasons to do it. Firstly, you don't need to have two computers connected with real null-modem cable. Secondly, there?s no need in a single PC with several free serial ports and additional multi serial port devices which are expensive and bulky. To emulate null-modem connection Virtual Null Modem can be effectively used. The program emulates one or more couples of RS-232 serial ports connected via virtual null-modem cable. It is possible to create the unlimited couples of virtual serial ports on a single PC and connect them in any sequence using virtual null-modem cable. Usually you need to use virtual null-modem when you have two applications to be connected via serial ports. In contrast to ordinary connection you do not need any additional hardware (computers, physical serial ports, cables) to perform it. Virtual null-modem allows user emulate virtual null modem connection and run the two applications simultaneously on the same computer. Moreover, it is possible to emulate real-world situations by adding some errors to the data exchange which may occur during the physical null-modem connection. Owing to its features set Virtual Null Modem can sufficiently ease the work of software developers and testers occupied in the field of industrial automation. Furthermore, the program may also be useful in the reverse engineering as well as in educational needs. So go ahead and download FREE trial version now!

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AlarIT Virtual Serial Driver (AVSD)
$109 - Alarit Inc.

AlarIT Virtual Serial Driver is appointed for emulation of one, two or more (up to
200) serial streams. Hardware devices are not necessary. This product is
based on Windows XP DDK and doesn't require using devices of other
manufacturers. The whole product is created with the help of Microsoft tooling.

AlarIT Virtual Serial Driver realizes full emulation of Serial Port functions,
connected with each other with the help of NULL-MODEM or full cable,
including DTR, CTS, DSR, RTS.

AlarIT Virtual Serial Driver can be interesting for software (for Windows Platforms)
developers, who use external devices connected with computer by serial port.
Also, it will be interesting for developers of the products appointed for
connection of two or more computers through serial ports.

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Alarit Net Serial Driver (ANSD)
$149 - Alarit Inc.

While the operation of different facilities, which are connected to a computer via serial port, there may appear the necessity to start up utility program (for these facilities) not in the machine, to which the facilities connect directly, but in the remote machine, that is connected to the facility server via the network (TCP/IP).
The developers of the given facilities very often face with such a necessity. For instance, during the debugging in a remote machine or when different people with the help of different machines (which are nevertheless connected to one machine) maintain the same facilities.
ANSD is designed especially for the solving of these problems. The use of our product gives you the possibility to give the remote access to serial port via TCP/IP. The product consists of three parts:
1. AVSD is a program emulator of serial ports (up to 255) for operational system W2K/XP.
2. ANSD client is the service, which realizes the exchange between AVSD and TCP/IP.
3. ANSD server is a service which realizes the exchange between a real driver of the serial port and TCP/IP.

ANSD client and server handle two flows: outcoming and incoming.
The client takes the bytes that were transferred to all the virtual ports earlier and then transfers them to the server, which was started up on the other computer. Also the client receives flows from the server and gives the bytes (as those which came from the outside) to AVSD.
IP address of the receiving server, port number and the number of the real serial port on the receiver are specified on the client for each port.
The server receives the information from clients and then transfers it to the ports specified by them. As for the flows, which came from these ports, the server transfers them to the client as well. Besides the data flow, TCP/IP transfers the overhead information about the condition of different signals on serial port physical contacts.

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Exp USB Virtual Driver (EUSBVD)
$89 - ExplorInform Inc.

There is a number of the equipment controlled through a serial port from a PC or a terminal. Also there is a lot of the technologies in the market allowing to operate remotely the consecutive devices through the network TCP/IP. These solutions contain, both software and the hardware. Our company as well has the like solution: it is a product for the remote control of consecutive devices ENSD. Nowadays there are more and more devices with interface USB as alternative to the parallel or consecutive connection, but there are still no decisions on the remote control of USB devices. One can think that there is no need in such solutions or they are not applicable in real life. In order to refuel this opinion we present here some examples of application of this technology.
LetOs suppose you have purchased the software protected by USB HASP KEY, but you want this product to be used on several computers, but in different time. If the computers are located close - it is not a problem to pull out the USB HASP KEY from one computer and to insert into another. There is a problem when the computers are located in different premises, or it is worse than that, in different cities (two sub-units of the same firm). Then it is necessary for you to purchase the additional license for the product and it may cost you thousand $.
In this case our product can solve your problem, thus you do not break requirements of the license agreement since simultaneously the product can work only on one computer. The same concerns the purchase of various USB equipment in several copies when it is possible to use one copy through the TCP/IP network. Our product allows to use any USB equipment located far away through the TCP/IP network.

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HiFlyTechNet Serial Driver (HNSD)
$189.9 - HiFlyTech Inc.

While the operation of different facilities, which are connected to a computer via serial port, there may appear the necessity to start up utility program (for these facilities) not in the machine, to which the facilities connect directly, but in the remote machine, that is connected to the facility server via the network (TCP/IP).
The developers of the given facilities very often face with such a necessity. For instance, during the debugging in a remote machine or when different people with the help of different machines (which are nevertheless connected to one machine) maintain the same facilities.
HNSD is designed especially for the solving of these problems. The use of our product gives you the possibility to give the remote access to serial port via TCP/IP. The product consists of three parts:
1. NVSD is a program emulator of serial ports (up to 255) for operational system W2K/XP.
2. HNSD client is the service, which realizes the exchange between NVSD and TCP/IP.
3. HNSD server is a service which realizes the exchange between a real driver of the serial port and TCP/IP.

HNSD client and server handle two flows: outcoming and incoming.
The client takes the bytes that were transferred to all the virtual ports earlier and then transfers them to the server, which was started up on the other computer. Also the client receives flows from the server and gives the bytes (as those which came from the outside) to NVSD.
IP address of the receiving server, port number and the number of the real serial port on the receiver are specified on the client for each port.
The server receives the information from clients and then transfers it to the ports specified by them. As for the flows, which came from these ports, the server transfers them to the client as well. Besides the data flow, TCP/IP transfers the overhead information about the condition of different signals on serial port physical contacts.

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ITS Net Serial Driver (ITSNSD)
$189.9 - ITSuperiority Inc.

While the operation of different facilities, which are connected to a computer via serial port, there may appear the necessity to start up utility program (for these facilities) not in the machine, to which the facilities connect directly, but in the remote machine, that is connected to the facility server via the network (TCP/IP).
The developers of the given facilities very often face with such a necessity. For instance, during the debugging in a remote machine or when different people with the help of different machines (which are nevertheless connected to one machine) maintain the same facilities.
ITSNSD is designed especially for the solving of these problems. The use of our product gives you the possibility to give the remote access to serial port via TCP/IP. The product consists of three parts:
1. IISVSD is a program emulator of serial ports (up to 255) for operational system W2K/XP.
2. ITSNSD client is the service, which realizes the exchange between ITSVSD and TCP/IP.
3. ITSNSD server is a service which realizes the exchange between a real driver of the serial port and TCP/IP.

ITSNSD client and server handle two flows: outcoming and incoming.
The client takes the bytes that were transferred to all the virtual ports earlier and then transfers them to the server, which was started up on the other computer. Also the client receives flows from the server and gives the bytes (as those which came from the outside) to ITMVSD.
IP address of the receiving server, port number and the number of the real serial port on the receiver are specified on the client for each port.
The server receives the information from clients and then transfers it to the ports specified by them. As for the flows, which came from these ports, the server transfers them to the client as well. Besides the data flow, TCP/IP transfers the overhead information about the condition of different signals on serial port physical contacts.

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