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While I install DOAC 5.80.040 OraProvider package with BCB5,
error message as below:
Can't find program entry @Crxml@Finalization$qqrv (in dynamic library DAC50.BPL).
Can't load package c:\program files\borland\cbulder5\Bin\oraprov50.bpl.
Can't find desirable procedure.

While I test my BCB5 project with DOAC 5.80.040, link ok, but can't run.
Error message as below:
Error reading QRY_A->SQL.Strings: Access violation at address 00344DA9 in module 'DAC50.BPL'.
Read of address 00000000.

Would you can telling me, what's wrong ? I am wating the answer since 2007/02/21 to now!

Best regards,
Herbert Chang, Taipei, Taiwan.

You get this error because ODAC 6.00 was not properly uninstalled. Please try to install ODAC 6.00 with the "/force" key (odac5.exe /force) and then uninstall it. Or you can uninstall ODAC 5.80 and make sure that the dac50.bpl and odac50.bpl files are removed form the Windows\System32 folder. After that you can install ODAC 5.80 again.

Sorry, after install odac6 /force and uninstall it, then install orac5 /force, it's still can't work.
I must compile \Odac\Lib\Oraprov50.bpk (miss files: Oraprov50.res, Oraprovider.pas) and overwrite \Bin\Oraprov50.bpl,
then I can install Oraprovider package.

But my project still occur the same error:
Error reading QRY_A->SQL.Strings: Access violation at address 00344DA9 in module 'DAC50.BPL'.
Read of address 00000000.

Should I uninstall BCB5 then reinstall it and Odac again ?

Best regards,
Herbert Chang, Taipei, Taiwan.

We reproduced and fixed the problem with OraProvider. But we couldn't reproduce the problem with access violation. Please describe the problem more detailed.

I don't know what's wrong.
While my MDI child form create (QRY_A is the query on child form), the error occurs.
May be the MyQuery (inherit from TOraQuery) or TzebdbGrid make this error.
But they are working well when MyQuery inherit from TQuery (Borland DBE Base).

Best regards.

Please send to ODAC support address complete sample that demonstrates this problem.