Assuming the CSDK installation was successful, I suspect the 64-bit version of the ODBC Administrator tool is running, while 32-bit IBM drivers were installed. 32-bit drivers will only be visible running the 32-bit version of the ODBC Administrator tool. Microsoft ships both 32- and 64-bit versions in their OS, but the 64-bit version is the one launched from the menus. (See this related question on Super User: ).You can run the 32-bit version from a command prompt:%windir%SysWOW64odbcad32.exeWhen you go to add your DSN, you should see the IBM drivers, like in the XP screenshot you posted.Also, make sure you either enter the full path or cd to the%windir%SysWOW64 directory. Otherwise, you be launching the 64-bit version, which incidentally is also called odbcad32.exe.EDITVisual Studio 2012 is only available as a 32-bit application. 32-bit applications won't see any data sources created with the default 64-bit ODBC Administrator tool.Two important caveats. Make sure you are running the 32-bit ODBC Admin tool.

• Ibm Database Add-ins For Visual Studio 2012 Express
• Ibm Database Add-ins For Visual Studio 2012 Install

If you simply type odbcad32.exe from a command prompt, you will be running the 64-bit version of the tool. Be sure to launch it using the full path:%windir%SysWOW64odbcad32.exe. If your data source is a system DSN, try creating it as a user DSN. There appears to be a problem for users seeing the system DSNs in the server explorer in and.EDIT 2I've looked back through this and think there is still some missing requirement in your environment. The are quite a few client packages from IBM and you may very well need one of the packages that is more comprehensive than the 'IBM Database Add-Ins for Visual Studio'.I would download and install the ' IBM Data Server Client' found at. Per IBM's description This is the all in one client package and includes all the clienttools and libraries available.

Ibm Database Add-ins For Visual Studio 2012 Express

Ibm Database Add-ins For Visual Studio 2012 Install

It includes add-ins for Visual Studio.I was able to download the IBM Data Server Client. Specifically, this is the one I chose.IBM Data Server Client (Windows AMD 64)ibmdataserverclientwinx64V10.5.zip (576 MB)Since this package was released on 2012-04-30, I would recommend applying the latest fix packs:I don't think you want the IBM Informix.NET provider. See 'Table 1' in this. The article also walks through connecting to Informix and using the Visual Studio Add-In.