Remarks

Purpose And Use Cases

The purpose of the Task Parallel Library is to simplify the process of writing and maintaining multithreaded and parallel code.

Some Use Cases*:

Keeping a UI responsive by running background work on separate task
Distributing workload
Allowing a client application to send and receive requests at the same time (rest, TCP/UDP, ect)
Reading and/or writing multiple files at once

*Code should be considered on a case by case basis for multithreading. For example, if a loop only has a few iterations or only does a small amount of the work, the overhead for parallelism may outweigh the benefits.

TPL with .Net 3.5

The TPL is also available for .Net 3.5 included in a NuGet package, it is called Task Parallel Library.