In Windows XP, I used to use sndrec32.exe (Sound Recorder accessory) to open a wav file and the get properties on the file. This would display the length, data size, and audio format (e.g. GSM 6.10 8.000 kHz, Mono). There was also the option to convert the file to another format.
I can't find this functionality in Windows 7. What is an alternative (hopefully built in)? SoundRecorder.exe in doesn't have this functionality. I always wondered by sndrec32.exe did have that, but I would like to know where that functionality went.
Update: Based on the comments, it looks like Vista might have this information in the properties (I can't verify this). The properties of a WAV file in Windows 7 does not.