puzzle on WDM driver sharing

NTDEV
1

Hoi
I wanna port a Windows 2000 WDM driver(for USB Modem device) to a Windows
98 platform, but unfortunately, some of the NTDDK functions win98 doesn’t
support.
I refer to the WDMSTUB in Walter Oney’s book “programming the microsoft
windows driver model”, but got a major question below:

Afterm import or apply WDMSTUB, what does the new driver stack seem like?
from NTDDK documentation, WDM modem driver stack looks like this(below)

TAPI

Unimodem

VCOMM

CCPORT.SYS

WDM Driver Model

so what is it after import WDMSTUB.VXD?
if it is this(below)
TAPI

Unimodem

VCOMM

CCPORT.SYS

WDM Driver Model

WDMSTUB.VXD

then, is it a WDM driver, or a VXD driver? freaky ~~~~~
any friend can give me a detailed explanation? I’m a newbie, that’s a lot.

*******************************************
本邮件已经过垃圾邮件过滤，如发现垃圾
邮件，请转发至：xxxxx@zte.com.cn
*******************************************