Pregenerated XmlSerializer assemblies with .NET 1.1

With .NET 2.0, there is an SDK tool sgen that allows you to pregenerate the assemblies produced by the XmlSerializer. When you instantiate an XmlSerializer on a given type for the first time, the code internally writes out a C# source file that contains the code to save and load the appropriate XML. This gets compiled into a temporary assembly and means that the first time you hit this code, there is a delay while this accomplished.

This can be quite noticeable for web service clients hitting a complex service or a number of different services, particularly if the application is often started to perform a particular operation and then closed afterwards. The serializer cost is paid each time the application is run.

There is a hotfix available from Microsoft PSS that provides support for pregenerated XmlSerializer assemblies for web service clients with .NET 1.1 (SP1).