数据源没有mysql驱动程序_MySQL的ODBC问题：数据源名称未找到和指定默认驱动程序...

I'm currently trying to run a classic ASP application which I've been given source code for. I want to set up on my 64bit Windows 7 dev machine and am having trouble with an ODBC based data connection to a MySQL instance.

I'm seeing the error:

Microsoft OLE DB Provider for ODBC Drivers error '80004005'

[Microsoft][ODBC Driver Manager] Data source name not found

and no default driver specified

/includes/.asp, line 100

What I've tried:

The connection is DSN-less.

The application is running under IIS app pool with local system permissions. w3wp.exe can be seen running under NT AUTHORITY/SYSTEM in process monitor.

The application is running under IIS app pool with 32 bit applications allowed to ru