Modem Master and Hs Xmodem C Source Library Software for Windows

Dial-up Password Recovery Master
$19.95 - Rixler Software

Dial-up Password Recovery Master is a dependable password recovery solution for network and dial-up connections. Most networks use authentication and authorization to allow or deny access to the Internet, network or other computers. This means there are tens, hundreds or even thousands of logins and passwords a system administrator has to keep track of. What happens when these passwords get forgotten or lost? How can one recover his or her Dial-Up password or a network logon password? Dial-Up Password Recovery Master provides an easy solution to this problem. The program recovers logins and passwords for LAN, Internet and network access (including modem connections, ISDN lines, virtual private networks). In addition, this software application provides users with information about network connection properties, such as connection names, types, phone numbers or IP-addresses. The program stores all this information handy and conveniently in one place. This data can be copied to clipboard or exported to a text file. Dial-Up Password Recovery Master is also the only program that works for both non-network Windows (9x and ME) and network Windows (NT, 2000, XP).

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Virtual Modem PRO
$99.95 - ELTIMA Software GmbH

Virtual Modem PRO 3.0 creates software virtual IP-modems and maps them to virtual serial ports in Windows OS. The product was developed to emulate standard hardware modems. New feature of Virtual Modem PRO enables not only to fully emulate Fax Class 1 modems, but also send faxes to any place on the Internet using virtual modems. All major software fax applications are supported (Microsoft Fax/Ventafax/SnappyFax 2000/Mighty Fax). So you may set up and use Windows Fax service or any third-party application to send/receive faxes to any host on the Internet without hardware modems. Save you money on purchasing fax machine and sending long-distance faxes by using fast and reliable virtual modems! The main difference is that instead of using conventional telephone line, it uses Ethernet network, including Internet, VLAN, VPN, etc. Virtual modems are connected to the computer via serial ports (COM1/COM2 or Virtual modem uses virtual serial ports that are complete copies of real serial ports. The main advantages of Virtual Modem Pro is speed and reliability of the transmitted data (since it uses fast Ethernet network and reliable TCP/IP protocol) as well as a considerable number (up to 255) of modems that can be created in any system. Every automation system that collects data from the remote hosts using modem and telephone line can greatly benefit from implementing Virtual Modem PRO. Among these are manufacturing/warehouse DAQ systems, fiscal/data transfers in a banking system, retail management, etc. Virtual Modem PRO uses virtual serial ports technology which fully emulates real serial ports and duplicates all their functionality. To create such connection the first virtual modem (local host) should be configured as a TCP/IP server that listens to incoming connections, while the other one (remote host) should be configured as a client to initiate the call.

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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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HS XMODEM C Source Library
$0 - Hillstone Software

HS XMODEM is a software library in C (supplied with full source code) that provides a programmer with the off-the-shelf support for XMODEM protocol data transfer capability. Support for both sender and receiver are provided. Other features include 1024 block size vs 128, CRC vs checksum, configurable timers and retries

* HOW IT WORKS:
When user application initlialises HsXmodem library, it provides interface callbacks for the services used by Xmodem protocol module: timer management, serial transmission and reception, memory management, event callbacks. This architecture makes it easy to port Xmodem protocol module to any environment

Xmodem module handles all protocol information flow, error recovery, acknowledgements, timeouts and so on. When it is appropriate to send next block of data Hs Xmodem will get next memory block from user application. Similarly, when data has been received Hs Xmodem module will get the next block of memory from user application to store data into

As a backup or an alternative to TFTP, Xmodem is often used in embedded devices and appliances for the purpose of software or configuration upgrade or retrieval.

* FEATURES:
- Xmodem Sender and Receiver
- 128 and 1024 block size
- Checksum and CRC option
- Configurable timers
- Configurable number of retries

* HOW TO BUY HS XMODEM LIBRARY:
You can purchase the library online using credit card payment at:
xmodem_buy.htm
The library currently costs EUR 99.00 for unlimited user license. Once the purchase is made you will receive download link by email to download full product deliverables, which include:

- HS XMODEM library binaries. (Win32 static library)
- HS XMODEM library full source code in C with MS Visual C project workspace
- HS XMODEM Demo Application binaries, full source code and MS Visual C project workspace.
- HS XMODEM library user manual, which documents in detail complete library API.

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Virtual Modem
$199.95 - FabulaTech, Inc.

There are many old data-centric applications that, for historical reasons, use direct modem connections to exchange data between Client and Server. Nowadays, local and global TCP/IP networks have made the direct modem connection obsolete.

Here's why: When you use a direct modem connection, you need to have a physical modem installed on each PC that needs to exchange data. You also must use a physical phone line. This makes the line busy and may even be costly, if long distance calls are required. Modem transfers are also not secure. A hacker doesn't even need to have an access to your phone line. Your data can be easily intercepted with a remote phone line scanner. In a TCP/IP network, on the contrary, you can use the power of a VPN (Virtual Private Networking), SSH or any other secure tunnel to ensure privacy and security.

There are a lot of reasons to move from a direct modem connection to TCP/IP networking. But, how can you do this without investing thousands into new software? Virtual Modem from FabulaTech provides a cheap and effective solution. This program creates virtual modems that use your local network or the Internet instead of a physical phone line.

How does it work? The virtual modems are accessible to all the applications that work through a direct modem connection. Setup is no different from setting up a physical modem. You simply select a virtual COM port in your communication application settings. The application can control the virtual modem directly by sending AT commands or with TAPI (MS Windows Telephony API). Thus, Virtual Modem should work out-of-the-box for all your communication programs.

One of the very useful Virtual Modem features is its "Address Book". The Address Book allows you to transparently translate phone numbers into IP addresses. You don't even have to change the phone numbers in your communication programs. Just put them into your Address Book.

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FTP Master
$0 - FTP Master

FTP Master is a utility for transferring files between your computer and a remote File Transfer Protocol (FTP) server anywhere on the Internet. Whether you're making public a Web page; downloading the latest digital images, music, and software; or transferring large files between your home and office, FTP Master will do the task quickly and easily, even if you're a beginner. The program features a user-friendly interface, a connection wizard, automatic-transfer-resume functionality, a transfer queue, directory comparison, custom commands, firewall and proxy options, path bookmarks, and filtered listings.

How it works:

FTP Master is similar to a Web-browser in that you give FTP Master a remote address to connect to after which it creates a connection to that remote file transfer server located somewhere on the Internet. Once connected, FTP Master can be directed to transfer data between your PC and the remote server or you can manage existing data on the server, such as change a file name or permission, delete a folder, or edit a remote document.

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