Determine highest .NET Framework version
62293
How do I detect what .NET Framework versions and service packs are installed?
64083
How can I tell which release my org is running?
36339
Detect whether browser is IE 7 or lower?
117609
What is a partially trusted assembly/application/code/etc in .NET?
18856
How can I protect my .NET assemblies from decompilation?
34418
How can I sort file names by version numbers?
116167
What is the maximum possible length of a .NET string?
29309
Finding the Eclipse Version Number
27752
How to detect which .NET runtime is being used (MS vs. Mono)?
6188
Targeting .NET Framework 4.5 via Visual Studio 2010
20799
Detect Windows version in .net
26482
.NET Framework - When to Upgrade?
77431
How to detect IIS version using C#?
32321
Quick way to tell if an installed application is 64-bit or 32-bit
1088
Best practices for API versioning?
146417
Migration of .Net Project from Framework 1.1 to Framework 4.0 (Windows Application)
48950
Can you compile C# so it doesn't need the .NET Framework at runtime?