. NET in the Web service of several properties, I come to the second Big Horn, can use the

Web BufferResponse
Gets or sets whether the response of the request is cached.
See how many things you preach, if you preach more like a large file, set this property to False. You have to use true for less.
CacheDuration
Gets or sets the number of seconds that the response should remain in the cache.
If your webservice is a query and returns the same result for all users within the specified number of seconds, then use it, and the performance will be improved.
Description
Describes descriptive messages for XML Web services methods.
Tell people what you are doing with this thing. Is the paragraph description text
EnableSession
Indicates whether session state is enabled for the XML Web services method.
Your service needs session, do not need to turn off quickly, performance and improve the hehe
MessageName
The name used for the XML Web services method in the data that is passed to the XML Web services method and returned from the XML Web services method.
I wrote a method in C #, and there are several overloaded methods, that is to use this, to create an alias, otherwise the XML webservice can not know which.
TransactionOption
Indicates transaction support for the XML Web services method.
The transaction here refers to the transaction of a Web service,
The XML Web Services method can only participate as a root object, and I kao how this works, which is not realistic in enterprise applications, because we often need multiple services to participate in one thing
Don't worry, Microsoft and IBM are trying to get it done, and it's almost done, so you can't wait to see it.
Ws-transaction