Console Command Parser?

Some games have a command console eg. Quake 2, CounterStrike, Doom 3, ect that is accessible by hitting the ~ key.

I would like to implement a command console in one of my applications but would like to get a few different ideas on how to implement it, or examples of current implementations in vb.net/C#.

The simple way to implement it would be to just have a large Select Case, but this means that i have to define each method and parse the parameters.

I was thinking about using attributes/reflection to define if the method was useable from the command console and then invoke them using reflection.

This also leaves me parsing the parameters.

Any other ideas?

Suggestions/Ideas?

Dynamic Code has its benifits

but there is a little too much overhead/power for what i want to do.

I basicly want to parse single line commands this does not merit creating a new appdomain (this application will be long running and, hopefully, used offen so executing it in the primary/default appdomain is not an option when using dynamic code)

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This is my current idea on how to implement this:

1) Create a separate assembly for console accessible commands

2) Only basic types are accepted (String, Int32, Boolean, Arrays)

I, as a programmer, would like to have commands like this:

MyRootNameSpace.Users.Add("String", 123, {"string", "string1"})

but i wonder if non-programmers would find this to confusing...?