sentences:  Perst for .NET supports C# versions 1.0 and 2.0 with the same source code.Support for specific C# 2.0 features (such as template classes) is provided at compile time.It is compatible with both standard and compact .NET frameworks, as well as Silverlight, and can operate on both Microsoft Windows Phone 7 (WP7) and Windows Embedded Compact (formerly Windows CE).