how to check which systems runs x64 or x32

[pschulz]

This is my processor = AMD Athlon II , I considire it as AMD64, am I wrong?
have installed Win10 on my lap, have excpect Is64bit givs me a 'true', but it doesnt.

I ask, cause this is the way I like to proof, f it has 64bit or 32bit system.

bool Is64bit = string.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"));

to come finally to this point

 if (Is64bit)
                {
                    searcher = new ManagementObjectSearcher("select * from Win64_Processor");
                    foreach (ManagementObject share in searcher.Get())
                    {
                        // first of all, the processorid
                        strProcId += share.GetPropertyValue("ProcessorId").ToString();
                    }
                }

[Arjay]

In .Net 4.0 or higher call, Environment.Is64BitOperatingSystem or Environment.Is64BitProcess.

[pschulz]

well, that works, thank you
But why I still get the IDs on a Win64 system (ProzessorID or baseboardId) using "select * from Win32_Processor", but using "select * from Win64_Processor" throw an error?

[Arjay]

well, that works, thank you
But why I still get the IDs on a Win64 system (ProzessorID or baseboardId) using "select * from Win32_Processor", but using "select * from Win64_Processor" throw an error?

Catch the exception to find out the error. WMI is great, but it is slow and has a lot of initial startup overhead. If you are usind .Net 4.0 or better, prefer to use the Environment class methods I suggested previously.

[pschulz]

well, it say no validate class, does it tell you something?
I changed the project to "AnyCpu" , so the app is shown as a 64 within the taskmanger, but its the same

[pschulz]

some to add
mabe I dont know whta you ment "prefer to use the Environment class methods I suggested previously. " Enviroment just givs me the maschinname, some other things but nothing like procId or Harddrive ID, or Basboard

[Arjay]

some to add
mabe I dont know whta you ment "prefer to use the Environment class methods I suggested previously. " Enviroment just givs me the maschinname, some other things but nothing like procId or Harddrive ID, or Basboard

You didn't ask for that - you originally asked for detecting 64bit.

[Arjay]

well, it say no validate class, does it tell you something?
I changed the project to "AnyCpu" , so the app is shown as a 64 within the taskmanger, but its the same

Is Win64_Processor a valid WMI class? I'm asking because I haven't looked it up in msdn. Even if it is valid, it make not be supported on the system you are trying the code on.

[pschulz]

it says no, but neither could find "Win32_Processor",
this is the page where I lookd:
https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx

this is to me the page where it has to be, big letters "WMI Classes"

[Arjay]

it says no, but neither could find "Win32_Processor",
this is the page where I lookd:
https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx

this is to me the page where it has to be, big letters "WMI Classes"

It isn't on that page directly (actually there is a link on that page that points you to the Win32 Classes). At any rate, search by Win32_Processor and you'll find https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx

There are no Win64_xxx WMI classes so that is why you get an invalid error when attempting to use that class.

[pschulz]

thanks man,
but I went through all of those links, within that page "https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx", but there wasnt any Win32 Classes.
Can you tell which link it is.

[Arjay]

thanks man,
but I went through all of those links, within that page "https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx", but there wasnt any Win32 Classes.
Can you tell which link it is.

Click on the link I gave you in post #10.

[pschulz]

I watch that link, of course, saw it is as you said.
Also watchd this "It isn't on that page directly (actually there is a link on that page that points you to the Win32 Classes)."
Just have like to see what did I miss, why you found, on the same route, some I couldnt.

[Arjay]

I watch that link, of course, saw it is as you said.
Also watchd this "It isn't on that page directly (actually there is a link on that page that points you to the Win32 Classes)."
Just have like to see what did I miss, why you found, on the same route, some I couldnt.

It's in the table of WMI Classes - the one with the Section and Description at the top of the page and the row with CIM Classes. Link highlighted in blue below.


Section Description
CIM Classes Common Information Model (CIM) schema classes. If you want to write your own WMI classes then you can inherit from one or more of these classes.
The WMI Win32 Classes inherit from the CIM classes.

[pschulz]

got it, thank you