Windows 7 64-bit C # access error: Microsoft. Jet. oledb.4.0 is not registered on the local computer.

This is written before 64-bit Windows 7 system debugging.ProgramWhen accessing access, it is found that the "Microsoft. Jet. oledb.4.0" provider is not registered on the local computer.

It is found that the 64-bit jet40 driver is not installed. You can

Http://www.microsoft.com/downloads/zh-cn/details.aspx? Familyid = c06b8369-60dd-4b64-a44b-84b371ede16d download. However, you must install a 64-bit office.

If you have installed 32-bit office, download the 32-bit driver. But at the same time, you must change your application to the CPU x86.

For Web applications, you can configure them through the application pool of IIS. Enable the 32-bit application.