progr,ASP.NET: System.BadImageFormatException: An attempt was made to load a program with an incorrect for

These message as blow:
Server Error in '/WebService' Application. --------------------------------------------------------------------------------
Could not load file or assembly '******' or _disibledevent=>http://www.lazyasscoder.com/Article.aspx?id=90&title=System.BadImageFormatException%3A+An+attempt+was+made+to+load+a+program+with+an+incorrect+format.++on+Win2k8+64bit%2C+IIS7%2C+Oracle
My .NET web service used to live in a 32-bit Windows 2003 server running under IIS6 connecting to an Oracle database. I had to migrate my web service to a new 64-bit Windows 2008 server running IIS7. This is when the following error started: Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B) at Oracle.DataAccess.Client.OpsTrace.GetRegTraceInfo(UInt32& TrcLevel) at Oracle.DataAccess.Client.OraTrace.GetRegistryTraceInfo() at Oracle.DataAccess.Client.OracleConnection..ctor(String connectionString) What the hell does this error means, no body knows. After alot of googling and playing around _disibledevent=>

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