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1991-05-22
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VC.DOC - 05/22/91
Hello:
Here is a little utility that might just save you some time and
trouble. Take any VISA/AMEX/MASTERCARD number and this little
utility will verify it for you.
There are two ways to use VC. First just type VC from the DOS
command line, and let it prompt you for a response. Better yet,
you can use VC with any program you write by just invoking VC
with one parameter on the command line. The credit card number.
The prompted mode will return the credit card type, and play a
quick tune to show that it has verified the card, and in both
cases, VC will return an 'errorlevel' in DOS that is equivalent
to the card type (3=Amex, 5=Visa, 4=MC) or a '0' if the card
cannot be verified.
As you can see, VC can be very useful in many ways! From within
a batch file, you can branch to various programs etc. as result
of the returned errorlevel, or do whatever.
VC is distributed as Shareware. If you find this program to be
of use, please consider sending the author $5.00 or whatever
you feel VC is worth. If you use VC for any form of business or
other profitable activity, this is not a voluntary contribution.
The source code is available in several languages, and I also do
have VC modules that can be included in any commercial product
for a reasonable price. Contact the author for details.
Daniel J. Karnes
POB 7007
Nashua, NH USA 03060-7007
The Cutting Edge BBS
300-9600 V.32/V.42 MNP
24 hrs.