We reviewed the various options provided by the Microsoft .NET Framework for making Web service calls. Whenever you are executing any sort of lengthy process where performance is an issue, it is always a good practice to look into an asynchronous execution model. We focused on asynchronous execution models from three kinds of Web service clients: Windows Forms clients, ASPX pages, and Web services. You are able to develop high-performance Web service applications by applying those models.

References

1. At Your Service: Asynchronous Web Service Calls over HTTP with the .NET Framework
2. At Your Service: Server-Side Asynchronous Web Methods
3. At Your Service: Performance Considerations for Making Web Service Calls from ASPX Pages
4. At Your Service: Adding a Progress Bar to Your Web Service Client Application
5. Microsoft .NET Compact Framework Background Processing Techniques
6. Wonders of Windows Forms: Safe, Simple Multithreading in Windows Forms, Part 1
7. Wonders of Windows Forms: Safe, Simple Multithreading in Windows Forms, Part 2
8. Wonders of Windows Forms: Safe, Simple Multithreading in Windows Forms, Part 3
9. Multithreaded .NET Web Service Clients
10. Windows Forms: Give Your .NET-based Application a Fast and Responsive UI with Multiple Threads
11. ASP.NET Pipeline: Use Threads and Build Asynchronous Handlers in Your Server-Side Web Code
12. Essential ASP.NET with Examples in C#, Fritz Onion, Addison-Wesley, 2003
13. Asynchronous Http Handlers
14. The ASP Column: HTTP Modules
15. HTTP Pipelines: Securely Implement Request Processing, Filtering, and Content Redirection with HTTP Pipelines in ASP.NET
16. .NET Delegates: Making Asynchronous Method Calls in the .NET Environment
17. .NET Framework SDK: Creating Asynchronous XML Web Service Methods
18. .NET Framework SDK: Communicating with XML Web Services Asynchronously
19. Chris Brumme: Asynchronous operations
20. .NET Framework SDK: Asynchronous Programming Overview