Track Application Usage in .NET Application

I have a.NET (C#) WPF application which run on different clients. I would like to track the usages, metrics, error, etc. of the application (with the clients permission off course) and have this information be sent back for further analysis.

I'm talking something like Google Analytics but for a client application and not web site.

I'm currently looking for very basic stuff like errors and crashes of the application,开发者_如何学JAVA application start, application exit and because my application is build with navigation (not SDI or MDI) when a screen is navigated to and when navigated away.

Because this is a client application, and some clients are not always connected to the internet I think I'll have to cache the data and send it once connection exists.

1. Has anyone seen something like this (that cost less then 100$) ?
2. Do anyone else is interested in such ability?

Thank you very much, Ido.

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I developed something that basically did what you want on a project once. I just used an AOP library (I think I used PostSharp but there are quite a few libraries out there now that are free) that tracked when a form was opened/closed, when errors were thrown, etc. We just stored the info in a text file which was uploaded to an FTP server when the application was started the next time. We mostly used it for error reports (it only sent if the application crashed) but you could do something like that for metrics gathering purposes.