When installing window2003 understand each client for each server and the difference between

 Installed WIN2003, referred to the select the and the user license money. WIN2003 official offer is over 30,000, each user license is 340. Here an example to a company.
a company set up 50 computers connected in LAN, while a server install WIN2003 system, corporate users access the server at the same time the number of no more than 30 (and access is shared through the Network Neighborhood or shared printers and the like), you need to spend the money are: 1 set WIN2003 price of 30,000, 30 user license price of 340X30. WIN2003 choose to install each server mode, users fill in 30.
over time if the company would also like to install another WIN2003 system, while the number of users access the server has 30 people, then the Companies have to spend: 30,000 +340 X30 money.
above company computers only 50, but due to simultaneous access to two servers, each with access to the largest number of 30 people, so each server using the above method to compare expensive, the better solution is to replace each house WIN2003 client mode. This company needs to spend the money total: 30,000 +340 X50 X2 sets of units, and later add WIN2003 server if the company, only need a WIN2003 money, and no longer need to add the license for the customer, unless the company in the new user's computer.
Note that there are two following points:
1, in the example above, the client computer a non-genuine and the user license purchased for the WIN2003 does not matter, that even if the client computer has a legitimate XP users, if you want to use WIN2003 to provide network services, users have to purchase licenses.
2,3 million purchase price of the software itself is WIN2003 , if the user needs to access shared files WIN2003, shared print have purchased user license.
3, if WIN2003 not provide the service users to share and the like, but only when a WEB server, in addition to cost 3 million to buy WIN2003 In addition, permissions have to purchase a WEB, WEB access permission to access the site with the same number of users does not matter. A WEB access permissions are more than 20,000 quotations.
4, the company spend so much money to the user license is not specific procedure or software, but only issued a Microsoft licensing contract that your company is in the legitimate use of software, otherwise referred to as the D version