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API function

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  • D David Crow

    Ravi Bhavnani wrote: But if I'm not mistaken, a "Run" entry in the HKEY_LOCAL_MACHINE subtree causes the application to start after any user logs in...Regardless, the user has to first login. Not so. I just verified this and without logging in to the machine, the applications in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run are indeed started. [edit] The jury is still out on this one. I'll keep looking... [/edit]


    "One must learn from the bite of the fire to leave it alone." - Native American Proverb

    RaviBeeR Offline
    RaviBeeR Offline
    RaviBee
    wrote on last edited by
    #9

    Did you mean RunServices instead of Run? /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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    • RaviBeeR RaviBee

      DavidCrow wrote: without logging in to the machine, the applications in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run are indeed started. That's amazing.  It seems to work exactly as I described on my Win XP Home SP1 box.  I confirmed this by adding a HKEY_LOCAL_MACHINE\... entry to this test app:

      #include "stdafx.h"
      #include "time.h"

      int main(int argc, char* argv[])
      {
      time_t tmNow;
      time (&tmNow);
      char szFilespec [255];
      sprintf (szFilespec, "C:\\%d.txt", tmNow);

      FILE* fp = fopen (szFilespec, "w");
      fclose (fp);
      return 0;
      }

      and rebooting and logging in a few seconds later. As I expected, there was only one file (C:\1124224887.txt) created. This matches Microsoft's documentation[^] of these keys. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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      David Crow
      wrote on last edited by
      #10

      Ravi Bhavnani wrote: ...and rebooting and logging in a few seconds later. But the question is does your test application run if you don't log in?


      "One must learn from the bite of the fire to leave it alone." - Native American Proverb

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      • RaviBeeR RaviBee

        Did you mean RunServices instead of Run? /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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        David Crow
        wrote on last edited by
        #11

        Ravi Bhavnani wrote: Did you mean RunServices instead of Run? No.


        "One must learn from the bite of the fire to leave it alone." - Native American Proverb

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        • D David Crow

          Ravi Bhavnani wrote: ...and rebooting and logging in a few seconds later. But the question is does your test application run if you don't log in?


          "One must learn from the bite of the fire to leave it alone." - Native American Proverb

          RaviBeeR Offline
          RaviBeeR Offline
          RaviBee
          wrote on last edited by
          #12

          DavidCrow wrote: does your test application run if you don't log in? No, because if it did, there would have been 2 files created - once when the system rebooted and once after I logged in. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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          • RaviBeeR RaviBee

            DavidCrow wrote: HKEY_LOCAL_MACHINE exists even when no one is logged in. True. But if I'm not mistaken, a "Run" entry in the HKEY_LOCAL_MACHINE subtree causes the application to start after any user logs in, as opposed to a corresponding entry for a specific user in the HKEY_USERS subtree which causes the app to only start when that user logs in. Regardless, the user has to first login. <aside> I believe this mechanism is used by installers that ask "Do you want to install this program for all users or just yourself?". </aside> /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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            pablo_mag
            wrote on last edited by
            #13

            Ravi Bhavnani wrote: But if I'm not mistaken, a "Run" entry in the HKEY_LOCAL_MACHINE subtree causes the application to start after any user logs in, as opposed to a corresponding entry for a specific user in the HKEY_USERS subtree which causes the app to only start when that user logs in. Regardless, the user has to first login. That's the way I've taken it to work, I always have to log in of HKLM\...\Run to take effect. One thing I suggest doing though, is use Winlogon Notification Packages (assuming you're programming for an NT-based version of windows), you can listen to startup/shutdown/login/logoff and other events. Check: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthn/security/winlogon\_notification\_packages.asp HTH

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            • P pablo_mag

              Ravi Bhavnani wrote: But if I'm not mistaken, a "Run" entry in the HKEY_LOCAL_MACHINE subtree causes the application to start after any user logs in, as opposed to a corresponding entry for a specific user in the HKEY_USERS subtree which causes the app to only start when that user logs in. Regardless, the user has to first login. That's the way I've taken it to work, I always have to log in of HKLM\...\Run to take effect. One thing I suggest doing though, is use Winlogon Notification Packages (assuming you're programming for an NT-based version of windows), you can listen to startup/shutdown/login/logoff and other events. Check: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthn/security/winlogon\_notification\_packages.asp HTH

              RaviBeeR Offline
              RaviBeeR Offline
              RaviBee
              wrote on last edited by
              #14

              Thanks for the info, but you may want to post a reply to the original author of the thread. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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              • RaviBeeR RaviBee

                Thanks for the info, but you may want to post a reply to the original author of the thread. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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                pablo_mag
                wrote on last edited by
                #15

                Good point! :doh:

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                • A Anonymous

                  Hi all, I wanna create a program that startup each time the pc started..which api i can used? :rolleyes:

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                  pablo_mag
                  wrote on last edited by
                  #16

                  One thing I suggest doing, is use Winlogon Notification Packages (assuming you're programming for an NT-based version of windows), you can listen to startup/shutdown/login/logoff and other events. Check: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthn/security/winlogon\_notification\_packages.asp HTH

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                  • RaviBeeR RaviBee

                    DavidCrow wrote: does your test application run if you don't log in? No, because if it did, there would have been 2 files created - once when the system rebooted and once after I logged in. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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                    Tim Zorn
                    wrote on last edited by
                    #17

                    why would there have to be two? if its started on startup it wouldnt create another process of itself for the user logging in. would it?

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                    • T Tim Zorn

                      why would there have to be two? if its started on startup it wouldnt create another process of itself for the user logging in. would it?

                      RaviBeeR Offline
                      RaviBeeR Offline
                      RaviBee
                      wrote on last edited by
                      #18

                      I booted the system at 2:30pm and logged in at 2:35pm. The file was timestamped 2:35pm. My point was, if the application ran on boot up, there would have been 2 files - one timestamped 2:30pm and the other 2:35pm. I also confirmed that the file is created every time I login. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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                      • RaviBeeR RaviBee

                        I booted the system at 2:30pm and logged in at 2:35pm. The file was timestamped 2:35pm. My point was, if the application ran on boot up, there would have been 2 files - one timestamped 2:30pm and the other 2:35pm. I also confirmed that the file is created every time I login. /ravi My new year's resolution: 2048 x 1536 Home | Music | Articles | Freeware | Trips ravib(at)ravib(dot)com

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                        Tim Zorn
                        wrote on last edited by
                        #19

                        cool

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