If you want to conceal chunks of data like connection strings or data written to a database or XML file then you could use the simplified class resting on the CryptoAPI demonstrated in this article.
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Use a transposition algorithm in Visual Basic. Using any text, the algorithm produces every permutation possible. (The article, demo project, and source code were updated.)
Just for fun, Paul Kimmel provides his recipe for building a successful project.
Go behind the scenes to learn how VB handles User Defined Types (UDTs) internally. See how VB stores UDTs in memory and learn how to use them in non-conventional ways, such as saving them to byte arrays, dumping them to files, and using them to accesses byte values of other data types.
Learn how to create plugins for your applications using Visual Basic.
Generating all possible combinations of a string in Visual Basic.
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Become more proficient on the usage of statements to control the flow of execution through a C++/CLI application.
Explore new ways to run processes under Windows. Some might even surprise you.
Conquer some Windows API files and learn to copy your screen's contents into a program.
Have you ever wanted to control your garage door from your smartphone? Here is your chance. Get your hands dirty with an Arduino Garage Door Controller.