In an Active Directory Domain, there is a special Domain Controller which holds the FSMO Role “PDC Emulator”.
As its name suggests, it is there to ease migration from NT 4 domains to Active Directory 2000 and up domains by letting this PDC Emulator DC behave like a NT4 Primary Domain Controller. This allows to keep running NT4 BDC (Backup Domain Controllers) and NT4 Clients while you migrate core DCs to Windows 2000 and up.
However, if you think the PDC Emulator is useless if you have no NT4 component in your infrastructure… you’re wrong !
It serves many other different purposes :
To make it short, even in a full Windows 2000 and up Domain, the PDC Emulator role is one of the most important ones …
I’ve written 2 sample applications to demonstrate how easy it is to use the API v2 of Google Maps.
I was honnestly surprised to see how easy it actually is… Have a look at the source of the pages and see for yourself