Well, it has happened to me and it is very frustrating to waste so
much time.

Running W2K Pro. Was running OK and could access databases both
local and remote using internal tools as well as IBExpert.

Testing firebird 1.5.2.4731 to switch between SuperServer and Classic
got something "confused" at my computer. I can act as a client for
any remote database OK. I cannot contact databases on my hard disk.

Tried EMS Interbase/Firebird Manager as well as IBExpert. I
get: "Connection failed! Service is stopped or unproper client
library is used to establish connection to the service!" Services
running OK, according to Services as well as Task Manager. But
databases are "Unavailable."

Path to executable for the service:
C:\Program Files\Firebird\Firebird_1_5\bin\fbserver.exe -s

Have done the CMD and "instreg.exe r" and the second time
the "instreg.exe i" with no joy.

I have done the reinstall and remove and reboot and reinstall fresh
tons of time. Tried Classic and SS installs. I am willing to
uninstall, delete the directories, etc.

I think something got confused on my localhost.

Help, please!