Attempt to load Oracle client libraries threw BadImageFormat

sony john

7y9.7k.NET

Hi ,

I am using windows 10 64 bit. I have created a new dot application in VS 2013 and referring oracle client 11g 32 bit. This is running perfectly fine.

Now I tried to run the same application in VS 2017. But it is throwing

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.'

I know that this is a problem already discussed and solution provided. I don't know much about this oracle client and all. I tried to set Any CPU feature and build the solution. But still throwing the same error. Its been almost few weeks. WOuld somebody explain me a solution in very simple steps.

2 Replies

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Riddhi Valecha6y ago
Hello Sir...

Do you know from where can we download ORacle Clients for 32-bit and 64-bit .... I am aslo facing the same error while running my application from Visual Studio 2013 with Oracle as back-end
sony john7y ago
I found out the solution. I installed both Client 11gR2 32 bit ad 64 bit. Now its working completely fine.

First I completely cleaned my system from oracle client. Below is the link for uninstall oracle client
Link to uninstall oracle client - http://www.rebellionrider.com/oracle-sql-concepts/how-to-uninstall-oracle-database-11g-from-windows-10-by-manish-sharma.htm#.W-lmM5MzYdV.

Then I installed 11g 32 bit and 64 bit . Refer below two links.
https://stackoverflow.com/questions/25216290/installing-oracle-32-bit-client-on-windows-server-already-running-64-bit-oracle
http://realfiction.net/2009/11/26/Use-32-and-64bit-Oracle-Client-in-parallel-on-Windows-7-64-bit-for-eg-NET-Apps/