I am working on a program that controls the behavior of Windows Media Player - pause, play, play next, etc. and read the information of the media library. I searched the Media Player SDK for help but failed to find any useful information. Does anyone know how to do this?

you can find C# sample programs to play audio and video files in the Managed Directx 9 SDK

thanks a lot ^^

First, I don't know the correct way to enumerate network interfaces on a computer, so I used existing performance counters, and calculate the network speed in a brute forcing manner. One problem is that a "MS TCP loopback interface" exists on every computer. I gave my program to some friends, and they told me it won't work with dial up network and some ADSL network, so I don't know the exact exception message.

I'm writing a program that needs to list all network interfaces in the computer and detects their speed. I tried performance counter related classes in Diagnosis namespace, but many unexpected problems occured. can someone tell me how to do it right? any advice appreciated.

Is it possible that in future releases of Windows, the CLR would be started as system starts and manage all dotNET applications? It seems that currently every single dotNET app loads a copy of the CLR into memory even when they are executed concurrently

I did not catch the ThreadAbortException in a loop and the execution of the tread is actually stoped. There's still one problem with your codes: what if I want the tread to stop immediately when it is "doing something"?

I used the "Abort()" method of class Thread in a program to cancel a thread. It seemed to function correctly, but after the main program exited, the process can still be found in processes tab of "Windows Task Manager". Whenever this line is not executed, the problem does not occur. Is it inappropriate to cancel a thread in this manner?