情况：部署程序在 IIS 7.5 windows server 2008 R2 64 bit OS，引用“Oracle.DataAccess.dll”
运行程序会出现："Could not load file or assembly \'Oracle.DataAccess\' or one of its dependencies. An attempt was made to load a program with an incorrect format."
解决方式：设置IIS app pool 允许 32bit.如下图：