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ODP.NET Compatibility Regarding 32-bit vs 64-bit OS, Application and Provider (Doc ID 761214.1)

Last updated on JULY 03, 2023

Applies to:

Oracle Data Provider for .NET - Version 9.2.0.8 and later
Microsoft Windows (32-bit)
Microsoft Windows x64 (64-bit)
Microsoft Windows Itanium (64-bit)

Goal

Valid ODP.NET Configuations

When deploying an ODP.NET application across 32-bit vs. 64-bit environments the following configurations are valid.

Built On

Deployed On

OS

Target CPU

ODP.NET

OS

Runs As

ODP.NET

Windows 32-bit

x86, AnyCPU

32-bit

Windows 32-bit

32-bit

32-bit

Windows 32-bit

x86

32-bit

Windows 64-bit

32-bit

32-bit

Windows 32-bit

AnyCPU

32-bit

Windows 64-bit

64-bit

64-bit

Windows 32-bit

x64

32-bit

Windows 64-bit

64-bit

64-bit
NOTE: The table is valid for applications compiled with Visual Studio 2005 and later.  If you are using Visual Studio 2002/2003 then you must assume a TargetCPU of x86 when using this table.

If you are having problems with your configuration you can use the following information to trouble-shoot your environment.

Trouble-Shooting Your Environment

Depending on the following five factors...

  1. What bit version of the Windows OS did you build your application on?
  2. What bit version of the Windows OS do you want your application deployed on?
  3. What bit version of ODP.NET (i.e. the Oracle Client Software) did you build your application on?
  4. What bit version of ODP.NET (i.e. the Oracle Client Software) do you want your application deployed on?
  5. What was the TargetCPU set to when you compiled your Application in Visual Studio? 

You will achieve different levels of success when attempting to build and deploy your ODP.NET enabled application across 32-bit vs. 64-bit environments. 

Solution

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In this Document
Goal
 Trouble-Shooting Your Environment
Solution
 CorFlags Conversion Tool (CorFlags.exe)
 ODP.NET Publisher Policy Files, .NET Framework 2.0 Support and Breaking Changes
 Application Configuration File  (<AppName>.exe.config)
 Summary
References

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