Be aware that boxing and unboxing values so that you can use the Base Class Libraries carries a performance cost.
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Here, the proverbial rubber meets the road. Finish this project and create a working magnifier.
Take a look at most of the available environment variables on Windows systems, and what information they can supply. Examples are in C# and VB.NET.
Discover the world of Portable Class Libraries (PCLs) and how they can work for you.