Let me begin by saying that I understand that this isn't a Firebird problem per se. However, I have seen prior posts regarding this error and I was wondering if anyone had ever found a cause and / or resolution.

The problem is this:

At one customer's site everything will be running fine until we start gettting client connections refused by the server. The client receives this error:

The system could not find the environment option that was entered.

In the Firebird.log file you start seeing

TULAP01 (Client) Wed Mar 26 12:13:59 2008
INET/inet_error: connect errno = 203

Which is the Windows error number for the error that the client is seeing.

Googling the error number and string hasn't yielded anything useful.

If anyone has any ideas about what might be causing this I would love to hear them.

We are running FB 1.5.3.4870 on Windows 2003 R2 SP2.

Thanks in advance