Credit Card Verifier
Credit Card Verifier allows you instantly check all major credit cards number for validity without submitting the card number online. Credit Card Verifier can validate any VISA, MasterCard, Diners Club, Carte Blanche, EnRoute, American Express (AMEX), Discover, or JCB credit card number. ... Credit Card Verifier only verifies whether or not a credit card checksum is valid; it does not validate the credit card account. ... In order to verify a credit card account, you will need software that can access credit card networks, and, typically, submit authorization request on the card account.
http://www.credit-card-verifier.com/download/credit-card-verifier.exe - 292Kb - Download - Screenshot

Credit Card Number Validator
Credit Card Number Validator is a free utility to help you check validity of a credit or debit card number. Credit Card Number Validator verifies credit or debit card numbers right on your PC without going on-line or transmitting sensitive information from your PC. ... It only verifies whether or not a credit or debit card checksum is valid; it does not validate the credit or debit card account. ... In order to verify a credit or debit card account, you will need software that can access credit and debit card networks, and, typically, submit authorization request on the card account.
http://www.soft911.com/CCV/validator.exe - 358Kb - Download - Screenshot

CardCheck
CardCheck verifies credit card numbers to ensure they are genuine. CardCheck supports: Visa, MasterCard, American Express, Diners Club and Discover cards. Cards can be checked individually or in batches. It performs three functions: 1. It checks the number of digits is correct for that card... It checks the validity of the number structure against the internal credit card checksum. ... It checks the leading digit(s) is correct for that card type, 3.
http://www.dijialbum.com/download/cardchck.exe - 414Kb - Download - Screenshot

Credit Card Check Tool
Credit Card Checker Tool instantly check credit card number for validity. It verifies MasterCard, Visa, Carte Blanche, Diners Club, EnRoute, American Express (AMEX), Discover, JCB and other credit card numbers. Credit Card Check Tool utilizes LUHN10 algorithm (except EnRoute) and first card...
http://www.onlineinvestingsite.com/download/ccctool.exe - 272Kb - Download - Screenshot

HS XMODEM C Source Library
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,... * 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: http://www.
http://www.hillstone-software.com/hs_xmodem_demo.exe - 327Kb - Download - Screenshot

HS NMEA GPS C Source Library 1.0
HS GPS is a software library (with full C source code) which provides access to a NMEA-183 compliant GPS receiver via a serial communications port, decoding NMEA sentences: $GPGGA, $GPGSA, $GPGSV, $GPGLL, $GPRMC and $GPVTG. Decoded parameters include: time, date, position, altitude, speed,... * Applications - Navigation - Security - Telematics - Fleet Tracking - Asset Tracking - Any customer applications requiring access to a NMEA-183 compliant GPS receiver * Features - Interfaces a GPS receiver over COM ports COM1 - COM8 - Decodes most commonly used NMEA sentences from a GPS receiver: -...
http://www.hillstone-software.com/hs_gps_demo.exe - 309Kb - Download - Screenshot