asp.net程序部署到IIS服务器上后，连ORACLE报错，但是部署到其它IIS服务器没有问题

[longshujun]

asp.net程序部署到IIS服务器上后，连ORACLE报错，但是部署到其它IIS服务器没有问题，请问这是什么原因？
按照网上的方法安装了64位的ORACLE客户端，并且修改了系统环境变量PATH都没有用；在本机测试没有问题，以前部署的IIS服务器也没有问题，部署在一台新的IIS服务器后就报错了,错误提示如下：
System.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: 试图加载格式不正确的程序。 (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) at System.Data.OracleClient.OracleInternalConnection..ctor(OracleConnectionString connectionOptions) at System.Data.OracleClient.OracleConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.OracleClient.OracleConnection.Open() at

[郑州高新区WPF小王子]

This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed -》你安装的是32位（32 bit Oracle client components ）的客户端，不是64位的。

[郑州高新区WPF小王子]

引用 1 楼 duanzi_peng 的回复:

This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed -》你安装的是32位（32 bit Oracle client components ）的客户端，不是64位的。

参见：https://stackoverflow.com/questions/24104210/badimageformatexception-this-will-occur-when-running-in-64-bit-mode-with-the-32

[星空蔚蓝]

IIS程序池设置支持32位程序运行就可以了~

[华丽丽的小低调]

引用 3 楼 ranshouxu 的回复:

IIS程序池设置支持32位程序运行就可以了~

正解

[mirrorspace]

3楼正解

[longshujun]

IIS服务器上安装是64位的ORACLE客户端，并且IIS应用程序池设置的也是支持32位应用程序的，但是就是报错，没有道理的