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How to force C# App to run as administrator on Windows 7
I am building a WinForms C# appliction, and I need it to ask for administrator privileges so I can copy and open directories in C:\.
Is this possible?
The code I am going to use (if any one needs) is this:
if (!Directory.Exists("C:\\smm"))
{
Directory.Create("gg");
}
Or something like that, but I am sure I need administrator privilege.
Anyone know how I can do this?
You need to enable ClickOnce security settings in your project, then change the application manifest to require administrator privileges. This will cause Windows to show a UAC elevation prompt when the process starts, so the user can escalate your program to admin.
To enable ClickOnce, go into your project's properties, select the Security tab on the left, then check the "Enable ClickOnce Security Settings" box. Then go into the project's "Properties" directory, and open up the app.manifest file. In that file, there's a line that sets the required privileges:
<requestedExecutionLevel level="asInvoker" uiAccess="false" />
You can make it require administrator privileges like this:
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
That'll make it require admin when the process starts.
Related
I have written a program in the last days which automatically changes the proxy server. This runs as a Windows Forms Tray Application on the user level.
Now came a request which caused me some problems. A cmd command "ipconfig /registerdns" should be executed but this requires higher permissions.
I'm now looking for a way to easily execute this command in normal user context. Is there a way to run this one command as a system? Or any other possibility?
Or is there another function to re-register the dns without admin priviledge?
I hope there is a easy way.
Thank you very much!
As i know admin processes can only be created by another admin processes but still you can try adding this parameter to your process's start info
StartInfo.Verb = "runas";
if it doesnt work you set your application to run always as admin by adding app.manifest to your project and editing line 19 as below.
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
Create a script (.cmd or .bat) containing required command (here: "ipconfig /registerdns"), then flag it as "Run as administrator". Finally, run this script from your app instead of original command.
This should help in flagging as "Run as administrator": How to code a BAT file to always run as admin mode?
Okay so I found no solution for my former problem, because it is not possible to launch a elevated command from a user Application. But I found a powershell command: Register-DnsClient. This command does the same and does not need elevated priviledges. Only downside is it works only on Windows 8.1 and newer. So Windows 7 is not supported.
This question already has answers here:
Run process as administrator from a non-admin application
(1 answer)
How can you modify an in-use dll?
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Closed 5 years ago.
I realise something that when I restart my application (with code), it does not restart with admin rights. When I start my app by double clicking, it ask me that you want to run it as an admin and I say yes. But after that I need to restart my application programmatically and it has to restart as also admin but it does not.
I use simply this code to restart
Application.Restart();
and I added the following line to my app manifest file
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
Edit: I am not looking for using Progress class to restart. can I do it with Application.Restart?
We made a management console and we have plugins and plugins are needed to be updated. Thats why I have to delete the old dlls to upgrade but I receive errors when I try and I believe it is because the program does not have administrator permissions.
I have a WPF project in Visual Studio 2013, this project have two buttons. The first button say Start Service and the second say Stop Service.
When I run my Visual Studio as Administrator, the buttons work. But when I open my Visual Studio without privilages, the InvalidOperationException exception appear.
How to force my project start with privilages when Visual Studio doesn't run as administrator?
I added app.manifest to my project and change for
level="requireAdministrator" uiAccess="false"/>
but it didn't function.
For start or stop my service, I am using ServiceController.
As Torben M. Philippsen mentions in his article:
In Visual Studio 2010 (I guess the same applies to VS2008, but I
haven’t tested it) right click Your project and select “add new item”
Add a application manifest file – the default name will be app.manifest.
Inside the manifest file, change the existing configuration from
<requestedExecutionLevel level="asInvoker" uiAccess="false" />
To
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
Save and close the manifest file.
Please note that Your manifest file won’t show up anywhere in your solution. In order to fix that, in solution explorer, click the “show all files” button.
Important: Right click the manifest file and add it to the project – we need that in order to tell VS to use the manifest file when compiling our application.
Right click Your project and select “properties”.
On the application tab, the bottom section, select the manifest file:
manifest file selection
Compile and run the application. If Your UAC settings are enabled, You will be prompted to allow the application to start in elevated mode.
Sometimes it can come in handy to check whether Your application is actually running in elevated mode or not. Maybe You will find this codesnippet usefull:
WindowsPrincipal myPrincipal = new WindowsPrincipal(WindowsIdentity.GetCurrent());
if (myPrincipal.IsInRole(WindowsBuiltInRole.Administrator) == false )
{
//show messagebox - displaying a messange to the user that rights are missing
MessageBox.Show("You need to run the application using the \"run as administrator\" option", "administrator right required", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
else
{
MessageBox.Show("You are good to go - application running in elevated mode", "Good job" ,MessageBoxButtons.OK, MessageBoxIcon.Information);
}
This is interesting and it seems you need to change permissions of how the project runs, Try doing the following
go to project properties > Security
enable click-once security settings and select Full trust application
More infor in this link
WPF security
I have a c# application where I have to have read/write access to the root of the C drive. I realize I can compile the code and run the executable as administrator and it works. But I need to debug it and I am unsure as to how one would start the app within Visual Studio.
I have tried adding:
<requestedExecutionLevel level="asInvoker" uiAccess="true" />
to my manifest but I still get access denied error.
Here is the line of code that fails:
MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(#"c:\somemapnamefile.data", System.IO.FileMode.OpenOrCreate, "somemapname", 1000);
For now I have a work around but I'd like to know for the future.
Just run visual studio itself as an administrator. Any program you debug from there will also be run as an administrator.
VS must be run with admin right. however, a more elegant way is in the requiredExecutionLevel in manifest should set to 'requireAdministrator'.
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
When you open the project and try to debug, the VS2012 will warn about the admin right and restart itself to admin right. And also the exe file will be marked as requiring admin right at the first place therefore when deploy you don't need to configure admin right requirement in file properties.
You can also set this administrator option automatically:
To answer the question in your title, you can just select Run as Administrator from the context menu when starting VS.
Now the checked answer will not working.
You should find an option for this in project properties Linker -> Manifest File -> UAC Execution Level. Set this to requireAdminstrator.
This will cause the default generated manifest to include the requestedExecutionlevel that you need, so that your users will be prompted automatically to elevate their privileges if they are not already elevated.
The "This task requires the application to have elevated permissions" error occurs because of The current user didn’t have a sufficient privilege to open Visual Studio.
As a temporary solution
You can overcome this issue by right-clicking on visual studio and select run as administrator at every time you intend to open it
As a permanent solution,
You can check the compatibility troubleshooting
Right, Click on Visual Studio > select Troubleshoot compatibility.
Select Troubleshoot Program.
Check The program requires additional permissions.
Click on Test the program.
Wait for a moment until the program launch. Click Next.
Select Yes, save these settings for this program.
For the detail steps with images, please check Visual Studio requires the application to have elevated permissions
I have a problem, my application is running under admin rights (I have also manifest)
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
I'm making program to changing default icons. When I'm changing default icon for *.php file everything is ok. But if I want change default icon for *.mp3 file i get this error Requested registry access is not allowed. I dont know how can I get better privileges for working with registry. I'm using only this -> RegistryKeyPermissionCheck.ReadWriteSubTree. And this gives me error:
FileExt = FileExt.OpenSubKey("UserChoice", RegistryKeyPermissionCheck.ReadWriteSubTree);
Thanks for response!
Have u already tried to start your Assembly as an administrator? To check this quickly just start the compiled application as an administrator.
To achieve this programmatically change the user context during the execution of your code look at this MSDN article:
http://msdn.microsoft.com/en-us/library/w070t6ka.aspx
I added try catch -> try read/write catch read.