Hi!

My simple test case. In this case the access violation error changed to "possibly status vector overflow". ;)

create exception testexception 'error';

create or alter procedure testprocedure
returns(
    dummy integer)
as
begin
  exception testexception;
  suspend;
end

  IB_Connection1.Connected := TRUE;
  IB_Query1.SQL.Text := 'SELECT * FROM testprocedure';
  IB_Query1.Open;   



On 32 bit : OK - 'error' error message

On 64 bit : NO - Project Project7.exe raised exception class EIB_ISCError with message '<Missing arg #1 - possibly status vector overflow>'.

On 32 bit after the fix : OK - 'error' error message
On 64 bit after the fix : OK - 'error' error message