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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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» Home » Utilities » System Utilities (1552)

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» JustBoot Boot Corrector

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» Spb Pocket Pc Tips Tricks

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» ActiveStartup Deluxe

ActiveStartup Deluxe is created for advanced control over Windows startup. With this tool you can view, edit, inspect all programs, that are loading at system startup including services for WindowsNT based operational systems. ...

hexilesoft | 734 KB | Win95,Win98,WinME,WinXP,WinNT 4.x,Windows2000,Windows2003 | 29.95 | Downloads: 561

Date added: Sep 28, 2005 | » Details

» A-PDF Text Extractor

A-PDF Text Extractor is an utility designed to extract text from Adobe PDF files for use in other applications. The program is a standalone application. No Adobe Acrobat needed. To extract text from a PDF file, the PDF file must meet the following conditi ...

A-PDF.com | 936 KB | Win95,Win98,WinME,Windows2000,WinXP,Windows2003 | 23 | Downloads: 616

Date added: Sep 23, 2005 | » Details

» Server Maintenance Portal

Manage your Windows NT/2000/XP/2003 environment from a dynamically built web portal. Server Maintenance Portal is WMI (Windows Management Instrumentation) compliant. Query WMI enabled systems across the network and quickly gain access to vital system conf ...

Absolute Dynamics | 764 KB | Windows | 89 | Downloads: 475

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» HSLAB Sys Monitor Lite

Advanced real-time monitoring and statistics utility for Windows. HSLAB Sys Monitor uses some advanced technologies for logging and mesuring system components. The sensors permanently monitor behind parameters of the system and gather the information with ...

Handy Software Lab | 2202 KB | Win95,Win98,WinME,WinXP,WinNT 4.x,Windows2000,Windows2003 | 0 | Downloads: 480

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» Accurate Answering Machine

1. Turn your PC into a free answering machine 2. This application will monitor your incoming calls through your voice modem. 3. When a call is detected it will automatically answer it and play a soung file(greeting.wav) from the application directory. 4 . ...

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» Password Director

Password Director provides a safe and secure way to keep all your passwords and sensitive records (such as PINs, private phone numbers and so forth) in the single well-protected password database. You do not have to remember dozens of passwords anymore, j ...

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Date added: Sep 23, 2005 | » Details

» Orneta Tester for Smartphone 2002

Orneta Tester is a system tool for testing vibration, display, keypad, etc. of your Windows Mobile based Smartphone. It allows you display device specific information. Other functions are useful, like "Soft reset", "Power off" and &quo ...

Orneta | 67 KB | Windows CE,Pocket PC | 0 | Downloads: 495

Date added: Sep 23, 2005 | » Details

» EugeneShutdown

EugeneShutdown is a system utility for Windows 9x/ME/NT/2000/XP operating systems that allows to automatically shutdown, power off, reboot or log off current user at a specific time on your local computer and initiate shutdown of remote computer. The prog ...

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» Registry Drill

The Registry Drill is the most in-depth Registry utility and cleaner available today. It goes through the Registry character by character searching for any possible errors. A blank Key, a pointer to a non existing Key, a non existing file, invalid charact ...

Easy Desk Software | 7835 KB | Win95,Win98,WinME,WinNT 4.x,Windows2000,WinXP,Windows2003 | 39.95 | Downloads: 470

Date added: Sep 28, 2005 | » Details

» e-Counter

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e-rgonomy.com | 2700 KB | Win98,WinME,WinXP,Windows2000 | 0 | Downloads: 554

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» History Cleaner

Is your PC spying on you? Will your internet history expose your privacy? Did you know that all your surfing history is being recorded in secret hidden files on your PC.? Every website, files, movies, clips, documents, and anything else you viewed on your ...

historycleanermax | 836 KB | Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,Windows2000,WinXP,Windows2003,Windows Vista Starter,Windows Vista Home Basic,Windows Vista Home Premium,Windows Vista Business,Windows Vista Enterprise | 29.95 | Downloads: 511

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» AgataSoft Shutdown Lite

This program is a powerful automated PC Shutdown utility. Some of its features are: Date Based Shut down the computer at certain Date, Time. Count Down Shut down the computer in several time. Action on low CPU usage. Control Windows using the keyboard. ...

AgataSoft | 440 KB | WinNT 4.x,Windows2000,WinXP,Windows2003 | 7.5 | Downloads: 469

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» OneClick Hide Window

OneClick Hide Window helps you to hide all active program window immediately by click left&right mouse buttons. You can hide the browser windows, folder windows, applications windows, all windows in a flash time. Also by this program you can shutdown ...

NbiSoft | 291 KB | Win98,WinME,WinNT 4.x,Windows2000,WinXP,Windows2003 | | Downloads: 444

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» WinTasks 5 Professional Pro

Based on years of research, the award-winning WinTasks is now one of the most popular tools in the war against malicious software, and the perfect complement to your firewall and anti-virus software. Whether you are new to Windows, a business professional ...

Discount Guide Inc. | 4019 KB | Win98,WinME,WinXP,Windows2000 | 49.95 | Downloads: 432

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» Unknown Device Identifier

Identify unknown devices in your system especially after you reinstall your system and cannot figure out what all those yellow question mark labeled devices really are. Help you search for workable drivers on the Internet. Driver backup is optional, if yo ...

ZhangDuo Corporation International | 817 KB | Windows | 0 | Downloads: 507

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» ProcTune

This smart program will allow you to set very precisely and subtly the priorities and used memory of system and users` programs for the optimum efficiency of your system. It`s enough to set the supposed time of the processor`s loading with your tasks and ...

Despeus | 339 KB | Win95,Win98,WinME,WinNT 4.x,WinXP,Windows2000 | 12 | Downloads: 500

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» PowrClik

PowrClik is lightweight tray based utility intended to maintain power saving and shut down functions of your system by one click or by schedule. It also provides some additional functions concerning the matter. Main functions: enter computer on standby, e ...

Genntt Productions | 106 KB | Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,WinXP,Windows2000 | | Downloads: 575

Date added: Sep 23, 2005 | » Details

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