I do all according this information: http://diddy.boot-land.net/pxe/files/pe.htm.
I've been searching all web it, but the problem with startrom.0:
Windows could not start due to an error while booting from a RAMDISK.
Windows failed to open the RAMDISK image.


File [imagename] could not be loaded.
The error code is 21

I've tried to boot MiniXP from warez's Boot CD.
Pxelinux boots through WDS.