What exactly do you mean by "low-level"? The examples you give (spyware removal and operating systems) are wildly different categories of applications.

When I think of "utility program" I thing of a relatively small app that does a relatively minor task that is hard to do with existing tools (I definitely don't think "operating system"). In this case language is almost irrelevant. The only consideration I would give is if the language required library support or special runtimes to be installed on the target computer.

If I was relatively sure that all the computers I cared about had the CLR installed I wouldn't hesitate to use C#. It's perf and resource usage are fine for everything except the most demanding applications and it's a lot easier to write in. If wanted a "run anywhere" app that I could have on my USB drive I would probably use C++ with statically linked libraries just to minimize the dependencies.

Quote:Original post by nullsmind
but I've also enjoyed .NET for GUI development, etc. Is the new C++/CLI better than C# for this kind of work?

Apart from easy GUI programming, the .NET Framework have very nice threading support.

I have written a tool to anlyze the size of folders on drives, which makes use of multithreading. You can find it in my sig. When you look at the source, you'll notice how little code there is to provide the in my opinion a very powerful multi-threaded solution.