Have a quick project I need to put together for windows that can have no external references or dependencies; the stalwarts like C are obvious but if you are a .NET developer and need to build something like this very quick what language/tool would you use?
EDIT: Ultimately I want to be able to take JUST the exe produced by the compiler and put it alone on a windows machine and have the app run.
"No external references" is a bit vague. Are you talking about a deployment solution for an application?
For example, you can use Tcl which supports the ability to create a single file executable that contains both the application code and a virtual filesystem that can contain any other files needed by the application. If your goal is to create a single file that can be deployed without having to install extra files, read up about "starkits" and "starpacks".
Do you consider the .NET Framework "external"? If you stick to .NET Framework and use C#, your code should run anywhere the .NET Framework of appropriate version is installed, and you'll only need to deploy your .exe and .exe.config.
It is not possible to run a .NET program without the .NET Framework. If you can't require the .NET Framework to already be installed, then you cannot use a .NET program. That's what I meant.
I've no clue what the downvotes are about, but let me try once more to clarify. The original post said:
the stalwarts like C are obvious but if you are a .NET developer and need to build something like this very quick what language/tool would you use?
The answer is that if you are a .NET developer, there is no tool or language you can use for this purpose, as every .NET program requires the .NET Framework be installed. If you need a program that is entirely independant, then don't use .NET. As others have replied, you can bundle .NET into your exe. You can also have .NET installed with your application, if you're willing to ship a .MSI file and not just your exe.
But, by definition, a .NET program cannot be independent of the .NET Framework.
C/C++ would be your language but don't use any fancy libraries like MFC, MSVCRT, etc. or if you do link them statically to your executable.
If you're a .net developer, you could consider something like using Remotesoft's Salamander or another similar tool that compiles everything into a single executable (including the framework).
This option lets you develop in .net, but not install the .net framework on your client's systems. If you're deploying on non-MS systems, you can use the Mono's deployment tools to accomplish the same thing for free.
In general, I'd say stick to the tools and languages you know. It's easier to build an installer to install the .net framework then it is to learn a new suite of tools, libraries, etc.
You can do it for practically any language (I'm excluding the obvious C/C++)
py2exe. I do this regularly. One can create great-looking and powerful applications with Python and PyQt, bundle everything into a single no-dependencies executable and deploy to users w/o a need to install anything else. The executable is a few MB large (~9 with PyQt), and loads and runs quickly.It's more important which language / environment do you currently know well. Focus on that, because the tools do exist for anything you'd want to use.
If you target a Windows Vista .NET 3.0 is preinstalled, If you target a Windows 7 .NET 3.5 is preinstalled, if you use no other libraries than the ones included in those distributions then you app will run. Installing .NET isn't really that much work anyway, just ship with the redistributable.
Here's a left field answer...
Tcl
combined with starkits, you can create a simple double-clickable .exe with no need for an installer.
the downside, of course, is that it'll be written in tcl.
As an added bonus, you'll be able to port your app trivially to mac or linux (or a range of other odd operating systems)