Access Denied returned from CreateService

Neelesh K J Jain

Hello All, When I am executing the following code

SC\_HANDLE schSCManager, schService;
TCHAR szPath\[MAX\_PATH\];

GetModuleFileName(NULL, szPath, MAX\_PATH);
schSCManager = OpenSCManager(NULL, NULL ,SC\_MANAGER\_ALL\_ACCESS);

if ( schSCManager == NULL )
	return false;

schService = CreateService(schSCManager, USER\_SERVICE\_NAME, USER\_SERVICE\_NAME,
	SERVICE\_ALL\_ACCESS,SERVICE\_WIN32\_OWN\_PROCESS,SERVICE\_DEMAND\_START,SERVICE\_ERROR\_NORMAL, szPath, NULL, NULL, NULL, NULL, NULL);

The

CreateService()

is not returning a proper handle. When I used

GetLastError()

, its throwing a

ERROR_ACCESS_DENIED

error. Please help in solving this issue. Thanks in advance, Neelesh K J Jain.

Stuart Dootson

Are you executing this from an account with administrator access?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Neelesh K J Jain

Yes, I have the administrator access. Thanks, Neelesh K J Jain.

Stuart Dootson

From the documentation[^]:

ERROR_ACCESS_DENIED

The handle to the SCM database does not have the SC_MANAGER_CREATE_SERVICE access right.

That implies that when you called OpenSCManager[^], you didn't ask for the SC_MANAGER_CREATE_SERVICE access right.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Neelesh K J Jain

Hello Stuart, I tried even with SC_MANAGER_CREATE_SERVICE access right, then also I am getting same error code as access denied.

Stuart Dootson

Neelesh K J Jain wrote:

even with

'even with'? That access right (implied by SC_MANAGER_ALL_ACCESS) is absolutely necessary for creating a service. And you did include it in your call to OpenSCManager, right?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

serzh83

GetModuleFileName(NULL, szPath, MAX_PATH);
CreateService(schSCManager, USER_SERVICE_NAME, USER_SERVICE_NAME, SERVICE_ALL_ACCESS,SERVICE_WIN32_OWN_PROCESS,SERVICE_DEMAND_START,SERVICE_ERROR_NORMAL, szPath, NULL, NULL, NULL, NULL, NULL);

Try register service from another process

Neelesh K J Jain

Yes, its implied.