private string GetWindowsServiceUserName()
{
IntPtr manager = IntPtr.Zero;
IntPtr service = IntPtr.Zero;
try
{
manager = WindowsServiceBridge.OpenSCManager(null, null, WindowsServiceBridge.SC_MANAGER_QUERY_ACESS);
if (manager == IntPtr.Zero)
{
ThrowWin32Exception();
}
service = WindowsServiceBridge.OpenService(manager, _serviceController.ServiceName, WindowsServiceBridge.SERVICE_QUERY_CONFIG | WindowsServiceBridge.SERVICE_CHANGE_CONFIG);
if (service == IntPtr.Zero)
{
ThrowWin32Exception();
}
bool retCode = WindowsServiceBridge.QueryServiceConfig(service, IntPtr.Zero, 0, out uint bytesNeeded);
if (!retCode && bytesNeeded == 0)
{
ThrowWin32Exception();
}
IntPtr qscPtr = Marshal.AllocCoTaskMem(Convert.ToInt32(bytesNeeded));
try
{
retCode = WindowsServiceBridge.QueryServiceConfig(service, qscPtr, bytesNeeded, out bytesNeeded);
if (!retCode)
{
ThrowWin32Exception();
}
var sci = (ServiceConfigInfo)Marshal.PtrToStructure(qscPtr, typeof(ServiceConfigInfo));
return(sci.ServiceStartName);
}
finally
{
Marshal.FreeCoTaskMem(qscPtr);
}
}
finally
{
if (service != IntPtr.Zero)
{
WindowsServiceBridge.CloseServiceHandle(service);
}
if (manager != IntPtr.Zero)
{
WindowsServiceBridge.CloseServiceHandle(manager);
}
}
}
public void SetWindowsServiceCredentials(string serviceName, string username, string password)
{
IntPtr manager = IntPtr.Zero;
IntPtr service = IntPtr.Zero;
try
{
manager = WindowsServiceBridge.OpenSCManager(null, null, WindowsServiceBridge.SC_MANAGER_ALL_ACCESS);
if (manager == IntPtr.Zero)
{
ThrowWin32Exception();
}
service = WindowsServiceBridge.OpenService(manager, serviceName, WindowsServiceBridge.SERVICE_QUERY_CONFIG | WindowsServiceBridge.SERVICE_CHANGE_CONFIG);
if (service == IntPtr.Zero)
{
ThrowWin32Exception();
}
if (!WindowsServiceBridge.ChangeServiceConfig(service, WindowsServiceBridge.SERVICE_NO_CHANGE, WindowsServiceBridge.SERVICE_NO_CHANGE, WindowsServiceBridge.SERVICE_NO_CHANGE, null, null, IntPtr.Zero, null, username, password, null))
{
ThrowWin32Exception();
}
}
finally
{
if (service != IntPtr.Zero)
{
WindowsServiceBridge.CloseServiceHandle(service);
}
if (manager != IntPtr.Zero)
{
WindowsServiceBridge.CloseServiceHandle(manager);
}
}
}