"Virtual" ppp (dial-up) interface on windows ?

[venim]

Hello,

we have a custom-made program that uses a dial-up connection to transfer files from a remote server using a "custom" protocol (should be appletalk, based on IANNA).

Anyway, as long as we were using dial-up it suited us fine, now we updated to static adsl & we'd like to use it for that program too.

The problem is that the company that wrote that program doesn't want to upgrade it nor give us any specs on the protocol used (in order to write a small program to do the same task...), so we're left out cold.

Is there any way to setup a "virtual" dial-up connection that simply forwards packets to ethernet ?