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Hey folks,We recently encountered numerous questions regarding UAC elevation in heya.com.vn. This thread was written lớn address some of these common questions.Let me start off by saying that UAC elevation is a Windows Installer feature. By selecting either UAC elevation option in heya.com.vn, you are really passing the values down to the installer manifest which is stored in the setup.exe file.A little bit about User account Control (UAC) - its a technology và security infrastructure introduced with Microsoft"s Windows Vista và Windows vps 2008 operating systems (and a more "relaxed" version also present in Windows 7 & Windows server 2008 R2) . It aims khổng lồ improve the security of Microsoft Windows by limiting application software to lớn standard user privileges until an administrator authorizes an increase or elevation. In this way, only applications trusted by the user may receive administrative privileges, & malware should be kept from compromising the operating system. In other words, a user trương mục may have administrator privileges assigned khổng lồ it, but applications that the user runs do not inherit those privileges unless they are approved beforehand or the user explicitly authorizes it.Taking this into account, there are three options for UAC elevation as far as Windows Installer is concerned:asInvoker (Never Elevate) - The application runs with the same access token as the parent process (Windows Explorer if you clicked on the installer in Windows Explorer). This option is recommended for standard user applications. Put simply, this option means bởi not show the UAC dialog even if the installer was run by an admin. This way, the setup is forced lớn run without any privileges.highestAvailable (Elevate Administrators Only) - The application runs with the highest privileges the current user can obtain. Recommended for mixed-mode applications. Put simply, this option means show the UAC dialog only if the installer was run by an admin. If the installer wasn"t run by an admin, the installer wont bother even showing the UAC dialog.requireAdministrator (Always Elevate) - The application runs only for administrators & requires that the application be launched with the full access token of an administrator. Recommended for administrator only applications. Put simply, this option means always show the UAC dialog, forcing non-admin users lớn "find" an admin that can elevate for them. This option guarantees maximum privileges for the installer.Please lưu ý that further manipulation of the UAC elevation status is also available at runtime using the Run Program As command. For example, you might want khổng lồ run your installer with the highestAvailable UAC elevation, but run an external executable within it with de-elevated privileges. This might be, for example, because you want khổng lồ limit that application"s privileges. Another example would be to lớn make sure that documents or other files from an elevated application don"t kết thúc up in elevated folders, but in standard user folders.To de-elevate a program run from an elevated setup, kiểm tra the "Run under limited user account when UAC is enabled and thiết lập is elevated (de-elevation)" checkbox in the Run Program As command dialog:
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runprogramas.png (28.58 KiB) Viewed 42030 timesYou could also run program "as an administrator" from a non-elevated installer at runtime by using the Run Program As command & providing a user name & password for an elevated-credentials user. That being said, its important lớn remember that although you can automatically de-elevate an elevated setup (in the manner explained above), you cannot bởi it the other way around. In other words, if a cài đặt is not run elevated, calling Run Program As with admin credentials will cause the UAC dialog to be shown!Aviv Giladiheya.com.vn SoftwareWhite Papers (HowTos) - http://www.heya.com.vn/publication ... Papers.htmProduct Guides - http://www.heya.com.vn/publication ... Guides.htmheya.com.vn Help -F1 anywhere in the heya.com.vn IDETopStevePosts: 116Joined: Fri Jun 16, 2006 9:51 pmLocation: Canada eh

Re: UAC Elevation Clarification

Postby Steve » Thu Jun 16, 2011 3:12 pm

Aviv,Thank you very, very much!This is an excellent post & immediately clarifies the confusion I had around the choice of UAC elevation options within heya.com.vn.I hope that this will be added verbatim to the IA Help file!Thanks again,-SteveTopgiavivPosts: 2039Joined: Fri Dec 17, 2010 1:39 pm

Re: UAC Elevation Clarification

Postby giaviv » Thu Jun 16, 2011 3:42 pm


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Aviv Giladiheya.com.vn SoftwareWhite Papers (HowTos) - http://www.heya.com.vn/publication ... Papers.htmProduct Guides - http://www.heya.com.vn/publication ... Guides.htmheya.com.vn Help -F1 anywhere in the heya.com.vn IDETopshenjigePosts: 16Joined: Wed Dec 15, 2010 7:29 pm

Re: UAC Elevation Clarification

Postby shenjige » Wed Aug 03, 2011 1:40 pm

How vì you load this "Run Program As" window lớn tick off the "Run under limited user trương mục when UAC is enabled and setup is elevated (de-elevation)" checkbox? I couldn"t find out anywhere khổng lồ load this window.TopStevePosts: 116Joined: Fri Jun 16, 2006 9:51 pmLocation: Canada eh

Re: UAC Elevation Clarification

Postby Steve » Wed Aug 03, 2011 2:08 pm

Shenjige,You need to lớn be in the MSICode window...On the right hand side of the MSICode screen is the "Drag and Drop" column of commands categories.Locate và expand the "All" category, then locate "Run Program As" from the list.Drag and Drop "Run Program As" into your the appropriate place in your code where you want the action to occur.TopshenjigePosts: 16Joined: Wed Dec 15, 2010 7:29 pm

Re: UAC Elevation Clarification

Postby shenjige » Wed Aug 03, 2011 2:45 pm

Hi, Steve,I am not sure if you really understand my problem now. Let me try to lớn get my problem straight: my application needs to lớn be installed on clients" computers, ideally to the default folder c:program filesmy application folder. The executable file EXE needs to lớn write some files (say text.txt file) in the same thư mục where the exe file is on the target machine. The process of building the thiết lập file is ok, after I installed the application và ran it. It said "the assess to the file text.txt is denied." It seems that my installed application doesn"t have full access of the target folder. I did look at the Run Program As, it seems that is for an extra external program you might need for your application. That is not my case. My question is how I can get full access of my target folder for my application. It didn"t have any problem on XP, now I try to make it on win7. I couldn"t get it khổng lồ work. Anything you might be able lớn take a look? Thanks!Gene.
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