Palwinder :
The job of integrating cutechat into existing system is Data-Integrating and Authorization-Integrating .
You should write your own DataProvider for cutechat , for the Data-Integrating .
And
You should write your own UserAdapter for cutechat , for Authorization-Integrating .
The help file contains the information of how too write the tow classes .
When you want integrate cutechat with ASP application , you could write the login info into cookie in Asp , and get it in Asp.Net
Regards , Terry .