C# with WMI problem

[cipro]

I have written code that reads in a list of computers and retrieves infomation regarding free HD space using WMI. No matter what remote computers are in the list, I always get info for my localhost. The entries in the list are formated like this:

\\\\computer1
\\\\computer2

Here is my Code:
using System;
using System.Management;
using System.IO;

namespace CheckDiskSpace
{
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
string[] computers = getList("C:\\list.txt");
foreach (string s in computers)
{
CheckDisks(s);
}
Console.ReadLine();
}

static string[] getList(string path)
{
StreamReader txtStream = File.OpenText(path);
int counter = 0;
string input = null;
while ((input = txtStream.ReadLine()) != null)
{
counter = counter + 1;
}
txtStream.Close();
Console.WriteLine("There are " + counter + " servers in the list");
string[] list = new string[counter];
input = null;
counter = 0;
txtStream = File.OpenText(path);
while ((input = txtStream.ReadLine()) != null)
{
list[counter] = input;
counter = counter + 1;
}
return list;
}

static void CheckDisks(string remotePC)
{
long mb = 1048576; //bytes in a Mb
ConnectionOptions oConn = new ConnectionOptions();
System.Management.ManagementScope oMs = new System.Management.ManagementScope(remotePC, oConn);
System.Management.ObjectQuery oQuery = new System.Management.ObjectQuery("select FreeSpace, Size, Name from Win32_LogicalDisk where DriveType=3");
ManagementObjectSearcher oSearcher = new ManagementObjectSearcher(oMs,oQuery);

ManagementObjectCollection oReturnCollection = oSearcher.Get();

double freespace = 0;
double usedspace = 0;
double totalspace = 0;
double percentused = 0;
double percentfree = 0;

Console.WriteLine("********************************");
Console.WriteLine("** " + remotePC + " Hard Disks **");
Console.WriteLine("********************************");

foreach (ManagementObject oReturn in oReturnCollection)
{
Console.WriteLine("Name : " + oReturn["Name"].ToString());
totalspace = Convert.ToInt64(oReturn["Size"])/mb;
freespace = Convert.ToInt64(oReturn["FreeSpace"])/mb;
usedspace = (totalspace - freespace)/mb;
percentused = (usedspace/totalspace) * 100;
percentfree = (freespace/totalspace) * 100;

Console.WriteLine("Free Space: " + freespace + " Mb");
}
oConn = null;
oMs = null;
oQuery = null;
oSearcher = null;
}
}
}




Thanks for the help.

 

[cipro]

Changed the following line and got it to work:
System.Management.ManagementScope oMs = new System.Management.ManagementScope("\\\\" + remotePC + "\\root\\cimv2", oConn);

However, I cant run my queries against windows 2003 machines(I am running from a windows 2000 machine). It is telling me access is denied. I am running the script as the domain admin and the 2003 PC is on the domain.

Any ideas?

 

[cipro]

its all good. I figured this whole one out on my own.

 

[stevexff]

Now that you've whetted our appetites, you have to tell us how. Run it from a 2003 machine, perhaps?

 

[cipro]

as far as my code goes, everything seems to be working correctly. I can run queries against most windows 2003/2000 machines. There are 2 machines that I cannot query, but the issue seems to be with the machines rather than the code. The only change that I made was the one that I posted earlier.

If anyone thinks that I am incorrect about my assumption regarding the 2 2003 machines that will not work please let me know and maybe suggest a solution.

Thanks for the help.

 

[cipro]

forgot to add one thing. I did add a few lines for impersonation, but it didn't make a difference with the access to 2 of the 2003 servers

 

[AgentM]

You probably needed to enable remote access or the dcom configuration to access, the win 2003 servers.