modem driver and NDIS

Hi,
I have a simple question on NDIS.
I need to develop a custom modem driver running on a non-standard network.

Would I have to develop a miniport and a seperate modem driver,
or can I just develop a modem driver (and forget about miniport)?

If I have to develop a miniport, what should be the miniport I should look at, NDIS or NDISWAN.

regards
jeseem

Hello,

Some programs can use a modem driver. When you write a serial driver
emulation than your driver is visible with name COMx. When your
network need some connection oriented operation than you must write
a littel hayes interpreter. The installation is very hard. You
have different code for Windows 98 (VXD) and Windows 2000 (SYS).

When you write a NDIS driver (NDIS WAN Miniport) than your driver
is visible for RAS. You can use your code for all OS and the
installation is easier.

elli