BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Vista and Writing to the Registry          BorlandTalk.com Forum Index -> C++ Builder (Native API) View previous topic :: View next topic   Author Message Mark Jacobs Guest Posted: Wed May 02, 2007 3:21 pm    Post subject: Vista and Writing to the Registry I have an application that cannot write to the registry unless I set its properties, compatibility to run as admin. After doing this, each time the PC is restarted, and the app is set launch at boot up, but I get a UAC message asking me if I'm sure I want to allow my app to run with admin privileges. Is there any way programmatically to avoid this prompt each time? Is there a better way of ensuring an app can write to the registry under Vista? TIA, -- Mark Jacobs DK Computing http://www.dkcomputing.co.uk Back to top Eelke Guest Posted: Wed May 02, 2007 3:37 pm    Post subject: Re: Vista and Writing to the Registry Mark Jacobs schreef: Quote: I have an application that cannot write to the registry unless I set its properties, compatibility to run as admin. After doing this, each time the PC is restarted, and the app is set launch at boot up, but I get a UAC message asking me if I'm sure I want to allow my app to run with admin privileges. Is there any way programmatically to avoid this prompt each time? Is there a better way of ensuring an app can write to the registry under Vista? TIA, You would probably have this problem to on windows 2000 with standard users. Yes use registry keys to which you do have write access as a normal user. The keys under HKEY_LOCAL_MACHINE are generally readonly for users so store as much as possible under HKEY_CURRENT_USER instead. If you must have write access to keys under HKEY_LOCAL_MACHINE it is possible to create keys with different security settings. But I never tried it myself as using HKEY_CURRENT_USER has aalways been sufficient for me. Ofcourse these keys should be created when running as administrator so it might be a good idea to create them during installation. Eelke Back to top Mark Jacobs Guest Posted: Wed May 02, 2007 5:42 pm    Post subject: Re: Vista and Writing to the Registry "Eelke" <e.klein (AT) remove (DOT) mplussoftware.nl> wrote in message news:463869f2$1 (AT) newsgroups (DOT) borland.com... Quote: If you must have write access to keys under HKEY_LOCAL_MACHINE it is possible to create keys with different security settings. But I never tried it myself as using HKEY_CURRENT_USER has aalways been sufficient for me. Ofcourse these keys should be created when running as administrator so it might be a good idea to create them during installation. Thanks for the reply. So, there is probably no solution, and the user will have to approve at every reboot under Vista (not too bad, I suppose). That's because the application is MJ Registry Watcher ( http://www.jacobsm.com/mjsoft.htm#rgwtchr with a forum thread at http://www.wilderssecurity.com/showthread.php?t=54666&page=21 ) and it needs to write to any registry branch if a trojan has done something naughty! Thanks again, -- Mark Jacobs DK Computing http://www.dkcomputing.co.uk Back to top Remy Lebeau (TeamB) Guest Posted: Wed May 02, 2007 9:50 pm    Post subject: Re: Vista and Writing to the Registry "Mark Jacobs" <http://www.jacobsm.com/mjmsg.htm?BorlandNG> wrote in message news:4638664c (AT) newsgroups (DOT) borland.com... Quote: I have an application that cannot write to the registry unless I set its properties, compatibility to run as admin. Then you are probably writing to a section of the registry that you shouldn't be, unless you really are trying to perform tasks that are deemed to be administrative in nature. What exactly are you trying to do? Also, make sure that you are opening the key(s) with the proper access rights as well. For instance, TRegistry defaults to requiring admin rights by default, so you would have to set the TRegistry.Access property accordingly before opening a key. Quote: After doing this, each time the PC is restarted, and the app is set launch at boot up, but I get a UAC message asking me if I'm sure I want to allow my app to run with admin privileges. Is there any way programmatically to avoid this prompt each time? No. That would circumvent what UAC is all about. Quote: Is there a better way of ensuring an app can write to the registry under Vista? Don't write to restrictive areas to begin with, unless you absolutely have to (in which case, you need admin rights to access them). Gambit Back to top Remy Lebeau (TeamB) Guest Posted: Wed May 02, 2007 9:55 pm    Post subject: Re: Vista and Writing to the Registry "Mark Jacobs" <http://www.jacobsm.com/mjmsg.htm?BorlandNG> wrote in message news:46388732$1 (AT) newsgroups (DOT) borland.com... Quote: That's because the application is MJ Registry Watcher... and it needs to write to any registry branch if a trojan has done something naughty! Have you considered changing your watcher to be a system service instead of a standalone application? A service runs in the SYSTEM account by default and thus has full access to the Registry, and can also run when no user is logged in. Gambit Back to top Mark Jacobs Guest Posted: Thu May 03, 2007 1:20 pm    Post subject: Re: Vista and Writing to the Registry "Remy Lebeau (TeamB)" <no.spam (AT) no (DOT) spam.com> wrote in message news:4638c277$1 (AT) newsgroups (DOT) borland.com... Quote: Have you considered changing your watcher to be a system service instead of a standalone application? A service runs in the SYSTEM account by default and thus has full access to the Registry, and can also run when no user is logged in. Yowch! There's a lot of UI and splitting the engine into a service whilst cooperating with the UI part is a massive change and a lot of work for a hobby project I offer to the public for free. Thanks anyway. They'll just have to OK it at every reboot under Vista - not a biggy. -- Mark Jacobs DK Computing http://www.dkcomputing.co.uk Back to top Alan Bellingham Guest Posted: Thu May 03, 2007 1:55 pm    Post subject: Re: Vista and Writing to the Registry "Mark Jacobs" <http://www.jacobsm.com/mjmsg.htm?BorlandNG> wrote: Quote: Yowch! There's a lot of UI and splitting the engine into a service whilst cooperating with the UI part is a massive change and a lot of work for a hobby project I offer to the public for free. Thanks anyway. They'll just have to OK it at every reboot under Vista - not a biggy. Ouch. Indeed, not worth doing then. It does show the value of splitting UI from logic code, though. I've at least one piece of code that needs similarly reshaping. Alan Bellingham -- ACCU Conference 2008: 2-5 April 2008 - Oxford (probably), UK Back to top Colin B Maharaj Guest Posted: Sat May 12, 2007 3:59 pm    Post subject: Re: Vista and Writing to the Registry Read these guidelines. I have been reading these guidelines since Win 2000 and it has helped me tremendously in understanding what MS expects from us. http://download.microsoft.com/download/d/e/1/de1e0c8f-a222-47bc-b78b-1656d4cf3cf7/WLP-SystemsReqs_309.doc http://download.microsoft.com/download/8/e/4/8e4c929d-679a-4238-8c21-2dcc8ed1f35c/Windows%20Vista%20Software%20Logo%20Spec%201.1.doc Mark Jacobs wrote: Quote: I have an application that cannot write to the registry unless I set its properties, compatibility to run as admin. After doing this, each time the PC is restarted, and the app is set launch at boot up, but I get a UAC message asking me if I'm sure I want to allow my app to run with admin privileges. Is there any way programmatically to avoid this prompt each time? Is there a better way of ensuring an app can write to the registry under Vista? 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