hello everyone,

i am looking at some of the hidden system files on my PC (xp service pack 2 )in parrticular ntldr.....there is one ntldr right off the c directory dated 2001
and another ntldr in c:\windows\servicepackfiles\i386 the later is dated
2004 the 2001 is 245 KB and the 2004 is 244 KB with the different dates i am assuming they are different...MY QUESTION
i am assuming the newer service pack file is being used, is this correct?
2) how is the new ntldr recognized by the rest of the system?
3) why isnt the original just overwritten, ?
4) how much other duplication is there in the service packs?

thanks john