NT 4 on Vista 7

[RAEM]

Hi,
I'm trying to use NT4.0.vhd on Vista 7 using VirtualBox v4.1.10 r76836 but on OS booting appears the following screeen:
"
*** STOP: 0X0000000A (0X0000005C,0X0000002,0X0000001,0X8010A761)
IRQL_NOT_LESS_OR_EQUAL*** Address 80101a761 has base at 8010000000 - ntoskrnl.

CPUI: GenuineIntel 6.a.7 irql:2 SYSVER 0xf0000565

Dll Base DateStmp - Name
80100000 37e8005b - ntoskrnl.exe
....
"
I was using this .vhd file normally with VPC2007 without any problem.
Is there a way to run this .vhd with Vbox? How?
Thanks in advance

[BillG]

I can think of at least two likely problems, both concerning device drivers.

1. Did you remove the VPC additions?
2. The "hardware" of the VirtualBox vm is different from the "hardware" of the VPC vm.

[RAEM]

Hi BillG,

You win with number 1 suggestion.

Thanks for your input