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  4. How to be informed/notified of registry modifications

How to be informed/notified of registry modifications

Scheduled Pinned Locked Moved C / C++ / MFC
windows-admintutorialquestion
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  • D David Crow

    You'll need to compare before and after "snapshots."


    "A good athlete is the result of a good and worthy opponent." - David Crow

    "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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    Alexandre GRANVAUD
    wrote on last edited by
    #11

    that's what i already do but it's very very slow because ineed to compare 2 trees of HKLM\Classes ! no way to get only the things that changed ?

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    • A Alexandre GRANVAUD

      that's what i already do but it's very very slow because ineed to compare 2 trees of HKLM\Classes ! no way to get only the things that changed ?

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      David Crow
      wrote on last edited by
      #12

      Alexandre GRANVAUD wrote:

      no way to get only the things that changed ?

      None that I know of.


      "A good athlete is the result of a good and worthy opponent." - David Crow

      "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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      • D David Crow

        Alexandre GRANVAUD wrote:

        no way to get only the things that changed ?

        None that I know of.


        "A good athlete is the result of a good and worthy opponent." - David Crow

        "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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        Alexandre GRANVAUD
        wrote on last edited by
        #13

        :( so is there a way to extract a .reg (snapshot) at one time, extract another one after and a tool to compare and save another .reg containing the differences ?

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        • A Alexandre GRANVAUD

          :( so is there a way to extract a .reg (snapshot) at one time, extract another one after and a tool to compare and save another .reg containing the differences ?

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          David Crow
          wrote on last edited by
          #14

          Yes, see RegSaveKey().


          "A good athlete is the result of a good and worthy opponent." - David Crow

          "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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          • D David Crow

            Yes, see RegSaveKey().


            "A good athlete is the result of a good and worthy opponent." - David Crow

            "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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            Alexandre GRANVAUD
            wrote on last edited by
            #15

            great :) with this i can do my 2 snapshots (are they .reg files ?) but how to compare and extract differencies from the 2 snapshots ?

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            • A Alexandre GRANVAUD

              great :) with this i can do my 2 snapshots (are they .reg files ?) but how to compare and extract differencies from the 2 snapshots ?

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              David Crow
              wrote on last edited by
              #16

              Alexandre GRANVAUD wrote:

              (are they .reg files ?)

              That's determined by the second argument.

              Alexandre GRANVAUD wrote:

              but how to compare and extract differencies from the 2 snapshots ?

              The same way you would compare any two files. For a quick & dirty approach, you could capture the output of fc.exe.


              "A good athlete is the result of a good and worthy opponent." - David Crow

              "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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              • D David Crow

                Alexandre GRANVAUD wrote:

                (are they .reg files ?)

                That's determined by the second argument.

                Alexandre GRANVAUD wrote:

                but how to compare and extract differencies from the 2 snapshots ?

                The same way you would compare any two files. For a quick & dirty approach, you could capture the output of fc.exe.


                "A good athlete is the result of a good and worthy opponent." - David Crow

                "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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                Alexandre GRANVAUD
                wrote on last edited by
                #17

                fc.exe is it included in windows ?

                D 1 Reply Last reply
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                • A Alexandre GRANVAUD

                  fc.exe is it included in windows ?

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                  David Crow
                  wrote on last edited by
                  #18

                  As far as I know, it's part of the standard installation.


                  "A good athlete is the result of a good and worthy opponent." - David Crow

                  "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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                  • D David Crow

                    As far as I know, it's part of the standard installation.


                    "A good athlete is the result of a good and worthy opponent." - David Crow

                    "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

                    A Offline
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                    Alexandre GRANVAUD
                    wrote on last edited by
                    #19

                    nice :) but the second argument you mentionned is just the filename not the fileformat, i'd need text file format (like .regs are)

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                    • A Alexandre GRANVAUD

                      nice :) but the second argument you mentionned is just the filename not the fileformat, i'd need text file format (like .regs are)

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                      David Crow
                      wrote on last edited by
                      #20

                      Alexandre GRANVAUD wrote:

                      i'd need text file format (like .regs are)

                      Which is what RegSaveKey() does.


                      "A good athlete is the result of a good and worthy opponent." - David Crow

                      "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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                      • D David Crow

                        Alexandre GRANVAUD wrote:

                        i'd need text file format (like .regs are)

                        Which is what RegSaveKey() does.


                        "A good athlete is the result of a good and worthy opponent." - David Crow

                        "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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                        Alexandre GRANVAUD
                        wrote on last edited by
                        #21

                        no it saves a .dat file which is (i verified it with notepad) a binary file not a text file : a proprietary fileformat

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                        • A Alexandre GRANVAUD

                          no it saves a .dat file which is (i verified it with notepad) a binary file not a text file : a proprietary fileformat

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                          David Crow
                          wrote on last edited by
                          #22

                          My bad. I was thinking of the "export" feature of regedit.


                          "A good athlete is the result of a good and worthy opponent." - David Crow

                          "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

                          A 1 Reply Last reply
                          0
                          • D David Crow

                            My bad. I was thinking of the "export" feature of regedit.


                            "A good athlete is the result of a good and worthy opponent." - David Crow

                            "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

                            A Offline
                            A Offline
                            Alexandre GRANVAUD
                            wrote on last edited by
                            #23

                            oh it can interest me too ;) i'd like a commandline export feature from regedit, does it exist ?

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                            • A Alexandre GRANVAUD

                              oh it can interest me too ;) i'd like a commandline export feature from regedit, does it exist ?

                              D Offline
                              D Offline
                              David Crow
                              wrote on last edited by
                              #24

                              Alexandre GRANVAUD wrote:

                              i'd like a commandline export feature from regedit, does it exist ?

                              No, regedit does not support command-line arguments.


                              "A good athlete is the result of a good and worthy opponent." - David Crow

                              "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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                              • D David Crow

                                Alexandre GRANVAUD wrote:

                                i'd like a commandline export feature from regedit, does it exist ?

                                No, regedit does not support command-line arguments.


                                "A good athlete is the result of a good and worthy opponent." - David Crow

                                "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

                                A Offline
                                A Offline
                                Alexandre GRANVAUD
                                wrote on last edited by
                                #25

                                is there another way to extract .reg files from commandline ?

                                1 Reply Last reply
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                                • D David Crow

                                  Alexandre GRANVAUD wrote:

                                  i'd like a commandline export feature from regedit, does it exist ?

                                  No, regedit does not support command-line arguments.


                                  "A good athlete is the result of a good and worthy opponent." - David Crow

                                  "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

                                  D Offline
                                  D Offline
                                  David Crow
                                  wrote on last edited by
                                  #26

                                  Alexandre GRANVAUD wrote:

                                  is there another way to extract .reg files from commandline ?

                                  Other than rolling your own, not that I know of. Using the registry API, it wouldn't be that difficult. If you are considering doing this for the sole purpose of comparing two registry keys, don't bother writing to disk first. That would be just too much time. Write to some data structure in memory instead.


                                  "A good athlete is the result of a good and worthy opponent." - David Crow

                                  "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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