using INotifyPropertyChanged interface in Compact Framework

On my .Net 2.0 project:

I implemented INotifyPropertyChanged  on all my business entities to monitor property changes thru PropertyChanging event. It works fine on my web and windows applications consuming my buiness entities but these application do not consume the web service part.

The problem occurs on the proxies generated when i referenced my web service and this ws uses these business entities. This is on a Pocket PC/CF2.0 application. Yes, of course events are not serializable and my proxy classes dont have those events (PropertyChanging and CancelEventHandler) but is it realy my problem or the Compact Framework not supporting System.ComponentModel.INotification interface

My compilation failed and it ask me to reference System.ComponenModel. So I edited the generated proxy class but still the project failed to compile.

Hope you can help me. Thanks in advance!