It's possible to place one modified winxp pro bootscreeen into the kit of the OS, as when i'm installing the OS to show me the modified bootscreeen?

I'm tryng to do it ... but its very difficult , because problably windows setup make a check on CRC's file Ntoskrl.ex_ . Now I have modified the CRC of my custumized boot logo ... Tomorrow I can say you something ...

If someone have any suggest , please post it ! Thanks a lot.

i know that if we change some thing inside a file its crc will also change.but can we convert it back to the same value,so that setup wont reject it.is there any tool for this