Symptoms:

AirSyncFilter is running as a console application without any problems, but when running as a service errors are reported.

Cause:

The account you use to start the service doesn't have enough rights to use RAS or the Internet or the Proxy.

Solution:

Start the service with Administrator or the account you use to logon onto Windows NT and then it should work.

Symptoms:

You have Windows 2000/2003 and when running AirSyncFilter as a console application the last screen line is not visible.

Cause:

By default the Windows 2000/2003 screen buffer size height for a console application is set to 300 lines.

Solution:

Select the Properties of the console and then select the tab labeled Layout and change the Screen Buffer Size Height to 25

Symptoms:

The logfile shows

Error: Unable to start inbound HTTP connection manager

Error: Port or address already in use [10048]

Cause:

AirSyncFilter can't bind to port 80 because there is already an IIS running on this port.

Solution:

AirSyncFilter runs on the Exchange machine:

You haven't bound IIS to a different port like port 81.

See the documentation, section Running AirSyncFilter on the same machine as Exchange server, how to bind Exchange to a different port.

AirSyncFilter runs on a different machine:

Most likely the SMTP server of IIS ( Internet Information Server ) is running.