How to get started on "W3WP.EXE 100% CPU" problem

IIS Manager -> Worker Processes

How to check one web site is HTTP compression enabled?

1. By this website
http://www.whatsmyip.org/http-compression-test/

2. By Chrome f12 tool/Firefox Firebug
Checking reponse headers if exists: Content-Encoding:gzip

(IE f12 tool does not display this header)

How to add GZip compression in ASP.NET?

How to develop Android apps by C#?

http://xamarin.com/monoforandroid

Can you Restore SQL Server 2012 backup to a SQL Server 2008 database?

No. Error message: Specified cast is not valid. (SqlManagerUI)
You can restore 2008 to 2012, but not backward.