unable to find the requested .net framework data provider. it may not be installed
问题 I am trying to connect to an informix database on a 64 bit windows 7 pc. I have been able to make the connection just fine on a 32bit pc, but I get the above error when trying to run it on the 64 bit pc. It is looking for the IBM.Data.Informix driver, but says it can't find it. I've got 2 versions of that dll in my GAC - 3.0.0.2 and 9.0.0.2. Does anyone have any idea how to get this working? Thanks for any thoughts. 回答1: I found the issue - I had to edit the machine.config by adding the