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If the configuration is changed for a service that is running, with the exception of lpDisplayName, the changes do not take effect until the service is stopped.
Security Remarks:
Setting the lpServiceStartName parameter changes the logon account of the service. This can cause problems. If you have registered a service principal name (SPN), it would now be registered on the wrong account. Similarly, if you have used an ACE to grant access to a service, it would now grant access to the wrong account.
Tips & Tricks:
Remember that the cofiguration settings will only be in effect the next time the service is started.
Sample Code:
IntPtr databaseHandle = OpenSCManager(null, null, SC_MANAGER_ALL_ACCESS);
if(databaseHandle == IntPtr.Zero)
throw new System.Runtime.InteropServices.ExternalException("Open Service Manager Error");
m_pServiceHandle = OpenService(databaseHandle, strServiceName, SERVICE_QUERY_CONFIG | SERVICE_CHANGE_CONFIG);
if(m_pServiceHandle == IntPtr.Zero)
throw new System.Runtime.InteropServices.ExternalException("Open Service Error");
//This code is changing the password for the service.
if (!ChangeServiceConfig(m_pServiceHandle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, null, null,
IntPtr.Zero, null, null, value, null))
{
int nError = Marshal.GetLastWin32Error();
Win32Exception win32Exception = new Win32Exception(nError);
throw new System.Runtime.InteropServices.ExternalException("Could not change password : " + win32Exception.Message);
}
Changes the optional configuration parameters of a service.
9/29/2021 2:48:28 AM - -90.242.135.188
Changes the optional configuration parameters of a service.
8/8/2011 7:49:05 AM - -87.205.225.145
Changes the optional configuration parameters of a service.
9/29/2021 2:48:28 AM - -90.242.135.188
The QueryServiceConfig2 function retrieves the optional configuration parameters of the specified service. At present, these are the service description and the failure actions.
2/6/2011 11:47:36 PM - Smoke-190.64.103.228
The OpenService function opens an existing service.
5/6/2020 6:55:40 AM - maxbgn-178.74.224.122
The OpenService function opens an existing service.
5/6/2020 6:55:40 AM - maxbgn-178.74.224.122
The QueryServiceConfig2 function retrieves the optional configuration parameters of the specified service. At present, these are the service description and the failure actions.
2/6/2011 11:47:36 PM - Smoke-190.64.103.228
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