C# or C++ How to make program to run when user password asked? -

i've such problem, need program run when user password asked(when computer switched on). know there class registrykey in both c++ , c# make program start when user logged in. there can that?

you might want have @ function createservice in msdn:

sc_handle winapi createservice(   _in_       sc_handle hscmanager,   _in_       lpctstr lpservicename,   _in_opt_   lpctstr lpdisplayname,   _in_       dword dwdesiredaccess,   _in_       dword dwservicetype,   _in_       dword dwstarttype,   _in_       dword dwerrorcontrol,   _in_opt_   lpctstr lpbinarypathname,   _in_opt_   lpctstr lploadordergroup,   _out_opt_  lpdword lpdwtagid,   _in_opt_   lpctstr lpdependencies,   _in_opt_   lpctstr lpservicestartname,   _in_opt_   lpctstr lppassword ); 

for dwstarttype use service_auto_start

for lpservicestartname can either use null make use localsystem account, or of following: nt authority\localservice or nt authority\networkservice. find out more different accounts can offer, read on service user accounts in msdn.

for lppassword can use null if used of values above.

for lpbinarypathname must put file path service.

if unsure other should have @ sample code "a basic windows service in c++ (cppwindowsservice)" in msdn. sample code starting point.