Now is 2010. So, I think Visual Studio 2010 will be released not far away. That is in Beta 2 now.
Then I think that is a good idea to watch an overivew video of Visual Studio 2010 from MSDN

There are some new key features in Visual Studio 2010. It got the support for parallel programming(that is good for Multi-cores CPU), MVC 2 and a new Managed Extensibility Framework(That is a component technology, it makes the developers can be easier to develop visual studio plug-ins). And for IDE, that is completely built on WPF and the startup page is a xaml file. So, the user can customize the startup page.

That sounds a lot of improvements.

That is a bit hard to write a mp3 player in C#. I think you may need to find third party mp3 decoder dll. But if you only want to play to a wav file, that is very easy. .Net libraries already have a control class for you.

Code

Code

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This afternoon, I wrote an example project for this. Moreover, this project is implemented in WPF rather than normal Windows Forms, because I wish to practice my WPF skills.

Download the example project, please click here.

I found Skype has API for developers. I can using Skype4COM to allow my C# code to access Skype, so that I can make a call or send a SMS via Skype from my C# application.

There are a lot of detialed tutorials in this URL:
https://developer.skype.com/Docs/Skype4COM/Example?action=show

I found a good tutorial about importing outlook contacts. Basically, you can use Outlook COM object to access the contacts.

Read more:
http://www.c-sharpcorner.com/UploadFile/rambab/OutlookIntegration10282006032802AM/OutlookIntegration.aspx

In a windows shared webhost, normally, they are giving medium level of trust mode for you. Therefore, you can access some core functions such as accessing event log. In my cases, I can't call some custom assemblies. If I run asp.net web application, I will only use full trust mode.