Copyright: Help for Good Credit (c) 1995 Bernd Cordes
Citation: (This help file was created with Microsoft Word 2.0b.)


Contents

General

What can Good Credit do for me?

How to use

Installation and deinstallation

Legal stuff, support

Shareware

Registration / Contact address

Legal information

And finally...

Other products

About the author


What can Good Credit do for me?

With Good Credit you can verify the 12 to 16 digit number on a credit card. This is useful in mail order or telephone order businesses so that you do not call the card company with a wrong number. Illegible digits need not be guessed but can be found out by trying.

A positive result, of course, means only that the card number's internal check sum is fulfilled. Whether your customer gave you his/her real number oder whether the card is still valid cannot be established this way.

Card types supported are Visa, MasterCard / Eurocard, American Express, and Discover. However, other cards can also be checked.


How to use

Using Good Credit is really simple. Just click on the following graphics to learn details.


Enter the card number to be checked here. It must have 12 to 16 digits in groups of four. The complete entry can be erased by ESC. Other useful editing keys are cursor left, cursor right, backspace, delete, home, and end.


Here you see the result of the verification. It is displayed automatically, i.e. you do not have to press an extra button.


This list shows the card numbers entered so far with a short hint at the result:
- = not valid, + = valid, M = MasterCard / Eurocard, V = Visa, A = American Express, D = Discover.
A valid number is one that passes the mathematical test but cannot be assigned to one of the major card companies.


Installation and deinstallation

Good Credit consists of CREDIT.EXE and CREDIT.HLP, that is executable program and online help. Simply copy these two files to a directory of your choice.

For deinstallation simply delete the two files.


Shareware

This is an unregistered version of Good Credit. The only drawback in comparison to the registered version is a reminder screen upon program start. Thus usability is only slightly reduced.

This program and its accompanying documentation are Shareware. The Shareware principle states that you may use the product for a limited time or to a limited extent freely, on violation of these limits, however, either erase the product completely from your system or convert it into the registered version by paying the registration fee, then being subject to normal copyright rules without the limitations mentioned. In the case of Good Credit the limitation is that you must not use the unregistered version for more than 30 days. Remember: Trust is the foundation of the Shareware principle!

All users of the unregistered version of Good Credit are granted a limited license to copy the product only for the trial use by themselves or others, provided that Good Credit is copied in its full and unmodified form. The copy must include all files necessary to permit full operation of the program. It must also include this documentation. Use of unregistered copies of Good Credit by any person in connection with a business, corporation, educational institution, or government agency is forbidden. Such users must register this product. By using the unregistered version of Good Credit you acknowledge that you have read and understood this limited license and agree to be bound by its terms and conditions. The registered version must not be distributed.


Registration / Contact address

This is an unregistered version of Good Credit. If you use Good Credit for more than 30 days you will have to register. To do so, switch on your printer and then click on this text: Order form.

Bernd Cordes
Wiesingerweg 34
D-20253 Hamburg
Germany
Phone/Fax +49 (40) 494370
CompuServe: 100334,375

As a registered user you will receive at no cost a user ID to convert your unregistered version into a registered version. Because of the context sensitive online help I do without a printed manual. Your personal version may be used without restrictions other than those resulting from copyright laws. Support by phone, fax, mail and e-mail is included. By registering Good Credit you are granted permission to use program and documentation on one computer at the same time.

Please see also the legal information.


Order form
Please print this Order form (File / Print Topic), fill it in and mail/fax it.

Bernd Cordes
Wiesingerweg 34
D-20253 Hamburg
Germany
Fax +49 (40) 494370

Name:	_________________________	Company:	_________________________

City:	_________________________	Zip code:	_________________________

Street:	_________________________	Country:	_________________________

Phone:	_________________________	Fax:	_________________________

I order:

________	licenses Good Credit 1.2 english

credit card, check:	DM 20 each	DM	_____________ total

all others:	US$ 10 each	US$	_____________ total

Site licenses available; please inquire.
Prices include taxes and shipping & handling. Credit card or check users, please check your current exchange rate.

I pay:

O	cash; money is enclosed

O	Visa card no ___________________________________ exp. date _________

O	CompuServe Registration Base (GO SWREG) No. 7077

O	check (drawn on a German bank in DM, payable to Bernd Cordes)

O	international postal money order

____________________________
Signature

If you can spare another piece of paper, please take the time to answer the following questions. You help to rid this product of possible bugs and to serve the customers' needs better.

Supplier of Good Credit 1.2:

O	Shareware distributor _______________________________________________

O	CD-ROM ___________________________ published by __________________

O	CompuServe, forum ________________________________________________

O	other information service: ____________________________________________

O	Internet, FTP server / WWW page ____________________________________

O	BBS ______________________________ in ____________________________

O	a friend

O	something totally different: ___________________________________________

Opinion in school marks:

usefulness:	A	B	C	D	E

user friendliness:	A	B	C	D	E

readme file, online help:	A	B	C	D	E

maturity / crash safety / bugs:	A	B	C	D	E

An F is not provided - if my program were that bad you would hardly have made it through here.

Suggestions for improvements:

Thank you for your effort!


Legal information

Beside defining the user rights for your unregistered version of Good Credit the following information is necessary:

The author of Good Credit is Bernd Cordes, Wiesingerweg 34, 20253 Hamburg, Germany. He owns the unlimited copyright. The unregistered version may be distributed freely.
© 1995 for program and documentation: Bernd Cordes.

Limited Warranty:
This product is provided as is, without any representation or warranty of any kind, either express or implied, including without limitation any representations or endorsements regarding the use of, the results of, or performance of the product, its appropriateness, accuracy, reliability, or correctness. The entire risk as to the use of this product is assumed by the user. The author does not assume liability for the use of this program beyond the original purchase price of the software. In no event will the author be liable for additional direct or indirect damages including any lost profits, lost savings, or other incidental or consequential damages arising from any defects, or the use of or inability to use this program, even if the author has been advised of the possibility of such damages. Some US states do not allow the exclusion or the limit of liability for consequential or incidental damages, so the above limitation may not apply to you.

Distribution Policy:
Permission is granted to any individual or business to distribute the unregistered copy of Good Credit, provided they convey a complete and unaltered copy of the entire package (recompression or decompression is permitted). This permission pertains to any kind of data media including online services and BBSes, any form of packaging and bundling, and any distribution fee. The author may revoke any permissions granted here by notification in writing.

Windows is a trademark of Microsoft Corporation.


Other products

ShareMan 1.7
Windows utility for software distribution; LHA and crypto interface also usable generally. Encrypt and decrypt text and files, insert passwords, user IDs and serial numbers with authentication digit into the program. Compress and copy files for distribution. Create individual disks with serial number, customer's name and company within the program, write a user ID and store customer data in an address file. Options can be turned on or off separately. Crypto algorithms as source.
Available in English and German. US$ 25 or DM 40.

Depleter 2.2:
Windows utility for owners of laptops and notebooks.
Countdown mode for controlling remaining battery use time, based on previous measurements during your normal work. Thus you can see long before your computer's built-in voltage control when you will have to shut down your work.
Discharge mode for calculated battery depletion under constant conditions. Thus you can detect and cure the memory effect, i.e. the steady decline of maximum battery capacity.
Available in English and German. US$ 10 or DM 20.

Backer 2.8:
Windows utility for comparing, synchronizing and updating files between any kind of data media, also via network, disk, or cable. Uses file creation dates to compare. Interactive selection of included or excluded files, file types and directories. Several options for sorting, path reduction, confirmation and filtering. Takes parameters for automatic work. Almost unlimited file quantities.
Available in English and German. US$ 25 or DM 40.


About the author

I was born in 1966 in little Stade near Hamburg. My first steps in the world of computers were on a TI 99/4A. Via Atari 400, Atari 130 XE, Atari 800 XL and Atari 1040 ST I climbed up to the PC in 1992, which turned from a mere writing tool to a fascinating programming machine, thanks to Borland C++ 3.1.
In 1986, I joined the Federal German Navy, doing an 11-month trip around the world on a sailing ship. Deciding the navy was the right place for me I applied for career officer, including a university degree in communications engineering, with a focus on digital electronics, microprocessors, and C programming.
In private, I am a passionate bachelor and now and then enjoy the multi-faceted nightlife of Hamburg.

TI 99/4A is a trademark of Texas Instruments.
Atari 400, 130 XE, 800 XL and 1040 ST are trademarks of Atari.
Borland C++ is a trademark of Borland International.

____________________
Bernd Cordes, 08/17/95