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Attempt to load Oracle client libraries threw BadImageFormatException from 64-bit machine.

Posted By:      Posted Date: September 14, 2010    Points: 0   Category :.NET Framework
 
We are receiving below error while connecting local ASP.NET site to Oracle server from 64-bit Win2k3 machine.  (System.InvalidOperationException: Attempt to load Oracle client libraries threw BadImageFormatException.  This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed. ---> System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)) One strange thing is that from same machine, if we connect through local SharePoint site, it connects well to oracle.  Please help...


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Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when

  
We are migrating our application from windows server 2003 32 bit to windows server 2008 64bit, after I have created the virtual folder on the new machine, I am unable to connect to the database. We have oracle 11g client installed and below is the error which I am getting - </BR></BR> System.InvalidOperationException: Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed. ---> System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B) at System.Data.Common.UnsafeNativeMethods.OCILobCopy2(IntPtr svchp, IntPtr errhp, IntPtr dst_locp, IntPtr src_locp, UInt64 amount, UInt64 dst_offset, UInt64 src_offset) at System.Data.OracleClient.OCI.DetermineClientVersion() --- End of inner exception stack trace </BR>Any help is greatly appreciated, I have tried couple of solutions going through some threads online but no luck.

Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occurwhen r

  
I'm getting this exception when I create an instance of a System.Data.OracleClient.OracleConnection.

Unhandled Exception: System.InvalidOperationException: Attempt to load Oracle client libraries threw BadImageFormatException.  This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed. ---> System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
   at System.Data.Common.UnsafeNativeMethods.OCILobCopy2(IntPtr svchp, IntPtr errhp, IntPtr dst_locp, IntPtr src_locp, UInt64 amount, UInt64 dst_offset, UInt64 src_offset)
   at System.Data.OracleClient.OCI.DetermineClientVersion()
   --- End of inner exception stack trace ---
   at System.Data.OracleClient.OCI.DetermineClientVersion()
   at System.Data.OracleClient.OracleInternalConnection.OpenOnLocalTransaction(String userName, String password, String serverName, Boolean integratedSecurity, Boolean unicode, Boolean omitOracleConnectionName)
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Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when

  
Hi eveyone,

Our application require Oracle client and it will fetch the data from the server, we Installed Oracle 10g client 64-bit on win2k3-64bit machine and it able to fetch the data from the database thru console application, same logic was implemented in web application and it is not able to fetch the data. Below error message we are getting .

 

If anyone have faced similar issue please help me to resolve.


I refered this post as well http://forums.msdn.microsoft.com/en-US/netfx64bit/thread/3f00bf30-2d81-4e6c-9bcc-16e06ebf46eb/ but this was also not solved my problem

Is there anything to do with IIS32 bit vs IIS64bit mode??
 

Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed

64 Bit ASP.NET Project - Attempt to load Oracle client libraries threw BadImageFormatException.

  

I am getting a "Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed."

I have a main ASP.NET project which is 64 bit(set to Auto though) and another oracle database project 64 bit(set to Auto). I am getting the above error in "Connection.open()' in the oracle database project. I am using System.Data.Oracle client, the 64 bit version-2.0.50727.5420


Edit.I thought I would mention that I am using the latest Instant Client v 11.0.2.0 from the Oracle to run my program.
....I also tried the ODAC provider from Oracle. Same problem.

Also the oracle database project seems to run fine in x64 bit mode by itself without any problems. The way i verified that it was running in 64 bit mode was I just looked into task manager while the Oracle database project was executing and there was no *32 in the name of the project. All the frame references to this project are already 64 bit. It seems like the issue is the ASP.NET project which is at 3.5

Meanwhile below are things i did to try resolve the issue .

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