If you work on small and relatively simple projects (in terms of number of components) you may not encounter this limitation. But in any non trivial ‘line of business’ application it is very likely that sooner or later you will come across this troublesome problem: Visual Studio refuses to open a project when the length of its (or any of its references) file system path is longer than 260 characters.

If you were asked to mention new features of C# 5.0, then you would probably say, first of all, async / await. However, on MSDN there is list of changes that could hardly be considered as well-known, even after almost 1 year after .NET 4.5 RTM was published. In this post I briefly explain one of them, that in my opinion is worth remembering.