Re: WMI Methods in C++

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

You have to set your impersonation level before you can make calls to WMI. After you call:

hres = ppiWmiLoc->ConnectServer(bstrserv, NULL, NULL, 0, NULL, 0, 0, &pSvc)

You need to call:

hRes = CoSetProxyBlanket(pSvc, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, NULL, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE);

That should get you fixed up (I hope).

Later,
Chris

luke_21 wrote:
For example for that code, I have no error about the execution of
Method, but I have Error code 1346 as Returned Value from
SetStringValue function.
It says that : Either a required impersonation level was not provided,
or the provided impersonation level is invalid. But can't understand
what that could say ....

.

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