Dankesehr für eure hilfe

This utility will be of particular interest to those wanting to
test their systems locally, simulating a full connect, logon and
logoff using no or a direct wire external connection. It will
also assist (a little) those wanting to delve further into the
workings of FOSSIL.

- 1 -

FUTIL FOSSIL Companion
Version 1.10

Usage:

FUTIL has only two possible command line parameters.

FUTIL [/Pn] [/U]

/Pn Install for port 'n' (0-16), default is port 0 (COM1)
/U Uninstall from memory, if already resident

FUTIL - What is it?

FUTIL is a small TSR (terminate and stay resident) utility which
acts as a wedge between FOSSIL and a FOSSIL aware application
(such as a mailer or BBS). Using keyboard commands, you can
simulate modem return codes and FOSSIL status information to
'fool' the application into thinking that it has connected,
received carrier and has a remote user logged on. This is very
useful while setting up a new BBS, or to simulate a modem to
modem connection with two locally hard-wire connected machines.

FUTIL fools the application by providing the means of intercepting
FOSSIL calls, optionally 'eating' transmitted characters,
returning modem result and connect codes and manipulating various
modem status information returned by a FOSSIL. All result codes
and status changes can be entered and manipulated from the
keyboard.

FUTIL is known to work with BNU and Opus!Com. It will normally
work with X00, excepting where an application uses the "x00" high
level language interface to bypass INT 14H and call the driver
directly. Therefore use with X00 is not recommended (but will
usually work).

In thory, FUTIL should work with just about any other FOSSIL in a
100% PC, PC/AT or PS/2 compatible under MS-DOS.

http://www.rechner-support.com/t27165-tool-programieren.html
http://social.msdn.microsoft.com/Forums/de-DE/visualcplusde/thread/2496c369-82ca-488c-8dc1-cdeb7ff713a2#ae193f51-abbd-4b37-b7cd-73f011d3ceeb