i just wanted to add to this thread, even if it is a year later.

i suddenly had a problem connecting to my firebird fdb files. delphi
executables threw back a crazy error about, and i quote it partially,
"unsupported on-disk structure for file xxx.fdb; found 32779.16, support
<Missing arg #4 - possibly status vector overflow>, ..." etc.

so then i back off a step and went native firebird with isql. it
connected to the databases fine when i did like a local connection,
"c:\path\xxx.fdb", but gave similar errors as above in the delphi exes
when i did, "serverhost:c:\path\xxx.fdb", where serverhost was either a
ip address or a netbios name.

damn it, when i installed delphi seattle, it transparently installed
interbase XE7. so i uninstalled that poop and firebird worked fine again.

lucas

On 2/28/15 07:34, Mark Rotteveel mark@... [firebird-support]
wrote:

> On 27-2-2015 06:25, 'Marius Labuschagne' mjlabuschagne@...
> [firebird-support] wrote:
>> Can someone please comment on this scenario.
>>
>> I have been working on my machine for months, and suddenly this morning
>> whenever I try to connect to any of my database stored on this machine I
>> get the following error:
>>
>> unsupported on-disk structure for file C:\......\TD3.FDB; found 32779.15
>>
>> My machine is an generation 4 I5 with 16GB of RAM, and running Windows 7
>> Professional.
>>
>> Firebird Server that is installed is Firebird-2.5.3.26780_0_x64
>>
>> Nothing has changed on the machine, that I know of, and suddenly this
>> morning when I wanted to start working all of the databases I try to
>> connect to gives me that error.
>>
>> I use Database Workbench to connect to the databases.
>>
>> Any input much appreciated.
> The error usually indicates that you are connecting to an Interbase
> server to access a Firebird database.
>
> Mark