dbExpress error in Delphi 2007 - delphi

Question

I have had Delphi 2007 for a while. I tried the Delphi 2009 trial. Then I un-installed the trial. Now I get this in a dbExpress Delphi 2007 application:
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Debugger Exception Notification
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Project ABC.exe raised exception class TDBXError with message
'Unable to load dbxora.dll (ErrorCode 126). It may be missing
from the system path.'.
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Break Continue Help
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I do not have dbxora.dll anywhere on my pc; I have dbxora30.dll, instead. Looking at another development machine (which has never had Delphi 2009 on it), I see dbxora30.dll too. FWIW, that file is here:
C:\Program Files\CodeGear\RAD Studio\5.0\bin\dbxora30.dll
And my path does include this location.
So it looks like Delphi 2009 introduced a new "dbxora.dll" which replaced "dbxora30.dll"... and when I un-installed Delphi 2009, it failed to point my system back to the original "dbxora30.dll". But now how do I use dbxora30 again?
Any suggestions?

Answer 1

I fixed the problem on my machine by editing this file:
C:\Users\Public\Documents\RAD Studio\dbExpress\dbxdrivers.ini
Under the section labeled [Oracle], I changed the "LibraryName" parameter from "dbxora.dll" to "dbxora30.dll".
I hope this helps someone else.

Answer 2

I had pretty much the same problem, though I installed the full Delphi 2009 along with the existing Delphi 2007 and found that it broke my previous exe files. I uninstalled Delpi 2009 but had to fix it by editing the same file (though it was in a different directory on my machine: C:\Documents and Settings\All Users\Documents\RAD Studio\dbExpress\dbxdrivers.ini). However, there were more lines than just the one that is mentioned above. Luckily, I had a backup of the ini file from before the Delphi 2009 installation. Here are the two sections in case anybody needs help with this:
[Oracle] - FROM DELPHI 2007
DriverUnit=DBXDynalink
DriverPackageLoader=TDBXDynalinkDriverLoader,DBXDynalinkDriver100.bpl
DriverPackage=DBXCommonDriver110.bpl
DriverAssemblyLoader=Borland.Data.TDBXDynalinkDriverLoader,Borland.Data.DbxDynalinkDriver,Version=11.0.5000.0,Culture=neutral,PublicKeyToken=91d62ebb5b0d1b1b
DriverAssembly=Borland.Data.DbxCommonDriver,Version=11.0.5000.0,Culture=neutral,PublicKeyToken=a91a7c5705831a4f
GetDriverFunc=getSQLDriverORACLE
LibraryName=dbxora30.dll
VendorLib=oci.dll
DataBase=Database Name
User_Name=user
Password=password
BlobSize=-1
ErrorResourceFile=
LocaleCode=0000
Oracle TransIsolation=ReadCommited
RowsetSize=20
OS Authentication=False
Multiple Transaction=False
Trim Char=False
Decimal Separator=.
MetaDataPackageLoader=TDBXOracleMetaDataCommandFactory,DbxReadOnlyMetaData100.bpl
MetaDataAssemblyLoader=Borland.Data.TDBXOracleMetaDataCommandFactory,Borland.Data.DbxReadOnlyMetaData,Version=11.0.5000.0,Culture=neutral,PublicKeyToken=91d62ebb5b0d1b1b
.
[Oracle] - FROM DELPHI 2009
DriverUnit=DBXOracle
DriverPackageLoader=TDBXDynalinkDriverLoader,DBXCommonDriver120.bpl
DriverPackage=DBXCommonDriver110.bpl
DriverAssemblyLoader=Borland.Data.TDBXDynalinkDriverLoader,Borland.Data.DbxCommonDriver,Version=12.0.0.0,Culture=neutral,PublicKeyToken=91d62ebb5b0d1b1b
DriverAssembly=Borland.Data.DbxCommonDriver,Version=11.0.5000.0,Culture=neutral,PublicKeyToken=a91a7c5705831a4f
GetDriverFunc=getSQLDriverORACLE
LibraryName=dbxora.dll
VendorLib=oci.dll
DataBase=Database Name
User_Name=user
Password=password
BlobSize=-1
ErrorResourceFile=
LocaleCode=0000
Oracle TransIsolation=ReadCommited
RowsetSize=20
OS Authentication=False
Multiple Transaction=False
Trim Char=False
Decimal Separator=.
MetaDataPackageLoader=TDBXOracleMetaDataCommandFactory,DbxOracleDriver120.bpl
MetaDataAssemblyLoader=Borland.Data.TDBXOracleMetaDataCommandFactory,Borland.Data.DbxOracleDriver,Version=12.0.0.0,Culture=neutral,PublicKeyToken=91d62ebb5b0d1b1b