Thanks for the info I was seeing that problem being discussed on the boards here. Well Here is a modified script does this make any sense to do ?

Break On
$hklm='HKEY_LOCAL_MACHINE'
select
case instr(@PRODUCTTYPE,'Windows NT')
$OS_SHORT='WinNT'
case instr(@PRODUCTTYPE,'Windows 2000')
$OS_SHORT='Win2K'
case instr(@PRODUCTTYPE,'Windows XP')
$OS_SHORT='WinXP'
case 1
return
endselect

$tempfile = "%temp%\ipconfig.tmp"

Shell '%comspec% /c ipconfig /all | find /i "Subnet Mask" >"$tempfile" 2>nul'

If Open(1,$tempfile) = 0
$line = ReadLine(1)
$SBNM = Ltrim(SubStr($line,InStr($line,":")+1))
?"Subnet Mask=" $SBNM
EndIf

$IpPart1 = Ltrim(SubStr(@IPADDRESS0, 1, 4))
$IpPart2 = Ltrim(SubStr(@IPADDRESS0, 5, 4))
$IpPart3 = Ltrim(SubStr(@IPADDRESS0, 9, 4))
$IpPart4 = Ltrim(SubStr(@IPADDRESS0, 13, 3))
$IPAddressComplete = $IpPart1 + $IpPart2 + $IpPart3 + $IpPart4
$IPSUBN=$IpPart1 + $IpPart2 + $IpPart3
$Octet = Val(SubStr(@ipaddress0,13,3))

If $SBNM
Select
Case $SBNM="255.255.255.0" Goto Oneseg

Case $SBNM="255.255.255.128" Goto Halfseg

Case $SBNM="255.255.255.192" Goto Quadseg

Case $SBNM="255.255.255.224" Goto 252

EndSelect
Endif

:Oneseg
$NDG=$IPSUBN + 252 $NDG1=$IPSUBN + 251
Goto end

:Halfseg
Select
Case $Octet<=126

$NDG=$IPSUBN + 124 $NDG1=$IPSUBN + 123
Case $Octet<=254
$NDG=$IPSUBN + 251 $NDG1=$IPSUBN + 252
EndSelect
Goto end
:Quadseg
If $OCTET
Select
Case $Octet<= 62
$NDG=$IPSUBN + 60 $NDG1=$IPSUBN + 59

Case $Octet<=126
$NDG=$IPSUBN + 124 $NDG1=$IPSUBN + 123

Case $Octet<=190
$NDG=$IPSUBN + 188 $NDG1=$IPSUBN + 187

Case $Octet<=254
$NDG=$IPSUBN + 251 $NDG1=$IPSUBN + 252
EndSelect

:252
:end


?" Your HSRP default gateway should be the following "$NDG
?" Your 2nd HSRP default gateway should be the following "$NDG1
? " Your Os is "@PRODUCTTYPE
? " The Script will make the changes for you "
Select

Case $OS_SHORT='WinNT'
; this is where I would like to put in the command to write the NDG and NDG1 into the Windows NT 4 machines network settings

case $OS_SHORT='Win2K'
; This is where a Windows 2000 machine would get the NDG and NDG1 written into in network settings area under Default gateway
case $OS_SHORT='WinXP'
; This is where we would put the command need to update the machine with the new default gateways.

Do you know how to set IP configuration in W2k and Wxp using the Netsh command ?