Reading from / Savign to the Registry

Question

Good afternoon, I am looking for any reference information you may be able to point me to regarding reading app configuration information from the registry / writing information to the registry. Basically, I have an application which I would like to read from a configuration section upon launch. Also, is there a simple way to play a wave file in a C# application? I have been looking in to the DirectX stuff but my current application does not require this level of coding. I'm just looking for an easy way to simply play a wave file. If you can direct me to some reference material, it would be very much appreciated. Thank you all. Bob