WMI ExexMethod() to execute ChkDsk

Question

0.00/5 (No votes)

See more:

I am working on a project to run chkDsk through ExecMethod on a particular drive.
Too passing the drive name. But it's not running.

This is the final line:

hRes = m_pService->ExecMethod(ClassName, MethodName, 0, NULL, pClassInstance, &pOutParams, NULL);

Here ClassName is Win32_Volume & MethodName is Chkdsk.

& drive is passed through

VARIANT varParam7;
varParam7.vt = VT_BSTR;
varParam7.bstrVal = SysAllocString(L"E:");
hRes = pClass->Put(L"DriveLetter", 0,&varParam7, 0);

hRes is HRESULT which is giving S_OK for every line except the final one where we use ExecMethod.

Please solve the issue & too tell me how to get the status of this Chkdsk WMI query.

Posted 29-May-13 1:44am

coolhimanshu.v

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

KarstenK · Answer 1 · 2013-05-29T03:10:00

Solution 1

You better DONT use the drive letter, but the complete UNC-path because the instance hasnt your druve mapping.

Posted 29-May-13 3:10am

KarstenK

Comments

coolhimanshu.v 30-May-13 2:02am

Thanks for the reply Karsten. Well, I too tried the UNC path as:
varParam7.bstrVal = SysAllocString(L"\\localhost\E$\\");

& then pass it as:

hRes = pClass->Put(L"DriveLetter", 0,&varParam7, 0);

then,
IWbemClassObject* pInParamsDefinition = NULL;
hRes = pClass->GetMethod(MethodName, 0, &pInParamsDefinition, NULL);

IWbemClassObject* pClassInstance = NULL;
hRes = pInParamsDefinition->SpawnInstance(0, &pClassInstance);

then I set ChkDsk parameter as:
VARIANT var;
var.vt = VT_BOOL;
var.boolVal = VARIANT_FALSE;
hRes = pClassInstance->Put(L"FixErrors", 0, &var, CIM_BOOLEAN);
var.boolVal = VARIANT_TRUE;
hRes = pClassInstance->Put(L"VigorousIndexCheck", 0, &var, CIM_BOOLEAN);
hRes = pClassInstance->Put(L"SkipFolderCycle", 0, &var, CIM_BOOLEAN);
var.boolVal = VARIANT_FALSE;
hRes = pClassInstance->Put(L"ForceDismount", 0, &var, CIM_BOOLEAN);
hRes = pClassInstance->Put(L"RecoverBadSectors", 0, &var, CIM_BOOLEAN);
hRes = pClassInstance->Put(L"OkToRunAtBootUp", 0, &var, CIM_BOOLEAN);

& finally:
BSTR bstr;
hRes = pClassInstance->GetObjectText(0,&bstr);
wprintf(L"%s\n", bstr);
CComPtr<iwbemclassobject> pOut;
VARIANT vPath;
CIMTYPE Type;
long l;
pClass->Get(L"__Path", 0, &vPath, &Type, &l);

All HRESULTs are giving S_OK. But in final execution of chkdsk no S_OK :-(

HRESULT hr = m_pService->ExecMethod(vPath.bstrVal, L"Chkdsk", 0, 0, pClassInstance, &pOut, NULL);

KarstenK 30-May-13 2:05am

You better use a suitable variable for the UNC-path because it ISNT a drive letter :-O

Havent you googled any working sample code?