Windows service and Win32_DiskQuota

Mon, 25 Jun 2007 00:18:51 Z

Hi,
I want get the actual quota's assigned to a user account.
The code is as follows.

public class QuotaInformation
{
public String DiskSpaceUsed;
public String Limit;
public String QuotaVolume;
public String User;
}
.
.
.
void GetQuotaInformation()
{
ManagementObjectSearcher searcher = new ManagementObjectSearcher(@"\root\cimv2",
"SELECT DiskSpaceUsed, Limit, QuotaVolume, User FROM Win32_DiskQuota");

foreach (ManagementObject queryObj in searcher.Get())
{
Console.WriteLine("Disk Space Used: " + queryObj["DiskSpaceUsed"].ToString());
Console.WriteLine("Limit: " + queryObj["Limit"].ToString());
Console.WriteLine("QuotaVolume:" + queryObj["QuotaVolume"].ToString());
Console.WriteLine("User: " + queryObj["User"].ToString());

QuotaInformation quotaInfo = new QuotaInformation();
quotaInfo.DiskSpaceUsed = queryObj["DiskSpaceUsed"].ToString();
quotaInfo.Limit = queryObj["Limit"].ToString();
quotaInfo.QuotaVolume = queryObj["QuotaVolume"].ToString();
quotaInfo.User = queryObj["User"].ToString();

}
}

when i used the code in the windows application. it works. it gets the actual quota

inforamation for each user account on my computer.
However, i used the code in the windows service. it gets quota information only for

Asministrater. not for the other users (for example, dad, mam, and grampa).
How I can get the quota information for all the users on my computer.

Thanks for reading.

Windows service and Win32_DiskQuota

Thu, 28 Jun 2007 06:12:40 Z

Hi,

Please make sure the service is run under Local System which is privileged.

Thanks

Windows service and Win32_DiskQuota

Thu, 28 Jun 2007 07:57:04 Z

Hi, hedwig

I tested the following code in a windows service and succeeded:

(Set Service Account to LocalSystem instead of User to test)

Code Snippet

public class QuotaInformation

{

public String DiskSpaceUsed;

public String Limit;

public String QuotaVolume;

public String User;

}

string str = string.Empty;

void GetQuotaInformation()

{

ManagementObjectSearcher searcher = new ManagementObjectSearcher(@"\root\cimv2",

"SELECT DiskSpaceUsed, Limit, QuotaVolume, User FROM Win32_DiskQuota");

foreach (ManagementObject queryObj in searcher.Get())

{

str += "Disk Space Used: " + queryObj["DiskSpaceUsed"].ToString() + Environment.NewLine;

str += "Limit: " + queryObj["Limit"].ToString() + Environment.NewLine;

str += "QuotaVolume:" + queryObj["QuotaVolume"].ToString() + Environment.NewLine;

str += "User: " + queryObj["User"].ToString() + Environment.NewLine;

QuotaInformation quotaInfo = new QuotaInformation();

quotaInfo.DiskSpaceUsed = queryObj["DiskSpaceUsed"].ToString();

quotaInfo.Limit = queryObj["Limit"].ToString();

quotaInfo.QuotaVolume = queryObj["QuotaVolume"].ToString();

quotaInfo.User = queryObj["User"].ToString();

}

protected override void OnStart(string[] args)

{

// TODO: Add code here to start your service.

GetQuotaInformation();

FileStream fs = new FileStream(@"D:\testService.txt", FileMode.OpenOrCreate, FileAccess.Write);

StreamWriter m_streamWriter = new StreamWriter(fs);

m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);

m_streamWriter.WriteLine("testService: Service Started" + DateTime.Now.ToString() + "\n");

m_streamWriter.Write(str);

m_streamWriter.Flush();

m_streamWriter.Close();

fs.Close();

}

Then check the testService.txt file under D: directory.

Please give a try.

Thanks