Why is C++ WMI Not Fetching Data? Error: 0xC0000005

Question

I'm quite new to WMI, I'm following this guide here .

So I pasted that code in the guide and ran it without any issues using the provided query. But when I changed the query to SELECT State FROM Win32_Service I get no data, just the error code 0xC0000005, which I believe is a permissions error?

That same query above works just fine in the PowerShell using the following command:

Get-WmiObject -Query "select State from Win32_Service"

What I've tried

• winrm quickconfig

So what gives? Why am I having trouble querying the WMI from my C++ code?

EDIT: I found the line that's causing the crash. I'm not sure why it's crashing though.

wcout << vtProp.bstrVal << endl;

Answer 1

I missed this line of code

hr = pclsObj->Get(L"State", 0, &vtProp, 0, 0);

Change the first argument to the property whose value you'd like to retrieve.