>>I am getting the message
>>
>>PXE-M04: Hooking bootstrap interrupt 18h..
>>
>>when I start WinNt(SP3). Is this a problem? The computer seems to run fine, but none of our other NT stations displays this message.
>>
>>Any ideas?
>
>Just a SWAG, but are you possibly using drive overlay software to make a large IDE drive that isn't supported by the native PC BIOS available to NT? I've never seen this message, but it'd be an obvious choice, since some of the bootstrap code and reference tables are redirected to locations in RAM to make the extended functionality needed for large drives available during system startup.
>
>Some older DPT SCSI HAs used a similar trick to redirect BIOS functions; they did this to make a SCSI device look like an IDE or ST506 drive, so that SCSI drivers didn't have to be loaded or developed (as long as the system supported standard drives, the DPT SmartCache HAs could make a SCSI drive look like something supported by the native AT BIOS. This was a big issue back when driver support for SCSI wasn't present in many operating systems.) In most cases, you're better off using the correct driver with these HAs, since NT (and most other current operating systems) have much more advanced disk support for SCSI driver models than the IDE BIOS provides for standard drives.
>
>I'd also run a virus checker on the system; boot sector viruses also redirect the bootstrap code...

Thanks for the help Ed. I'm not sure what "SWAG" means though.