Error using oracle.dataaccess.dll

Question

I have a web application which uses Oracle.DataAccess.dll to communicate with an Oracle db. The web application deployed on 32 bit windows system works but not on windows se

Answer 1

If you do the following, everything works fine 1. Consistently set all your dlls to AnyCPU. 2. Make sure that the appropriate version of the dll is installed on the machine on which the executable will be run (i.e. 32 bit or 64 bit i.e. same as OS) 3. Ignore compiler warnings that the a 64/32 bit version is being used rather than an MSIL version

The compiled versions can then be used on both 32 and 64 bit as long as the appropriate version of the oracle dll is installed.