I found that user creation on Windows 2003 takes a significant amount of time when we want to create a large number of users. So I decided to create a pool of 10,000 users. I am given to using long descriptive names for just about everything I do. So when I was creating these users with the long descriptive name I kept getting the error

“A device attached to the system is not responding.” after the 100th user. Some googling led me to this article which solved my problem. I really wonder how an error message like that got through the QA process at Microsoft.