Getting "BadImageFormatException" when attempting to connect through Visual Studio to Oracle
I discovered the solution myself. I found that apparently when I had installed Oracle Client, it had installed on my external drive E the first time and became Oracle Home #1 in the Windows registry. I don't believe it was "looking" at the Oracle client I had installed on the C drive even though it was first in the path. I uninstalled the Oracle clients on both the C and E drive and reinstalled the client on the C drive. I am now able to connect to Oracle with Visual Studio.