App Pool Name if specified with space, will always take Network Service as account

I have came across a wierd problem which I want to share with all so that they should not struggle to solve the problem.
Whenever a web application is created using wss object model, we have to specify various parameters out of which one is App Pool Name. So be careful while specifying the name, do not give any space in the application pool name. If app pool name will contain any space it will not use the specified credentials, rather it will always use Network Service as it credentials.
Hope it helps someone.
Happy Coding :)