How to fix Typelib generated by MIDL?

Question

I am trying to generate typelib of INetCfg interface using IDL in this page, seen below:

import "netcfgx.idl";

[
        uuid(d99085ff-c5d7-4a4c-a987-91a513e268a9),
        version(1.0),
        helpstring("NetCfgX 1.0 Type Library")
]
library NetCFGLib
{
        interface IEnumNetCfgBindingInterface;
        interface IEnumNetCfgBindingPath;
        interface IEnumNetCfgComponent;
        interface INetCfg;
        interface INetCfgProperties;
        interface INetCfgLock;
        interface INetCfgBindingInterface;
        interface INetCfgBindingPath;
        interface INetCfgComponentBindings;
        interface INetCfgBindingPath;
        interface INetCfgClass;
        interface INetCfgComponent;
        interface INetCfgIdentification;
        interface INetCfgClassSetup;
};

Unfortunately, the generated IDL still can't be loaded from comtype, with code given below:

        import comtypes.client as cc
        cc.GetModule("C:\path\to\netcfg.tlb")

It gives this error WindowsError: [Error -2147312566] Error loading type library/DLL

How do I fix this error? I am using Windows 7 64 bit, and Python 27 64

Answer 1

As I use Windows 7 64bit, just solved this issue, by first running WDK setenv.bat <path_to_wdk> x64. After that, generate the typelib either using midl netcfg.idl /env x64 (for 64bit TLB) or midl netcfg.idl (for 32bit TLB).

I opted to use generate the 64bit TLB

Hope it helps somebody who just get in touch with this COM beast!