I am trying to run an exe inside a console application. I am being prompted for UAC to enter admin credentials. The thing is i only have read and execute permissions. I cannot give full permissions as it is on a server.
using (Process process = new Process())
{
process.StartInfo.Verb = "runas";
process.StartInfo.FileName = ImgToDjvuPath;
process.StartInfo.Arguments = string.Format("\"{0}\" -profile \"{1}\" \"{2}\" \"{3}\"", ImgToDjvuPath, "fine200up", localNewDjvuFile, localNewDjvuFile);
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.StartInfo.CreateNoWindow = true;
process.Start();
process.WaitForExit(10 * 60 * 1000);
}
I want to be able to run this code and have it work without being prompted for uac.
This is why i do not like stack overflow, you ask a specific question and rarely get a specific answer. Then get marked down for asking a valid question. I figured it out about 2 minutes after i posted. Thanks to those to actually tried to help for being constructive and helping.
If you want to start a new process and if you want process to run as administrator, you need RunAs verb.
UAC prompt will be shown ONLY IF the process invoker does not have administrative rights.
For your case, if you do not want process to be executed as Admin, then you should remove below line from the code:
process.StartInfo.Verb = "runas";
Related
At work we use Azure functions for simple tasks.
To debug or run the function you need a running Azure Storage Emulator.
The problem is that our developer accounts don't have admin privileges so we can't start the emulator ourselves.
For now we solve this by asking an admin to start it for us, but that works only until you restart/turn off the machine.
We tried many things for the emulator to start for each user( as if it was run by the admin) but nothing worked.
Here is one of the methods we tried. A simple program that runs at startup and starts the emulator. If you start it manually as admin it does the job and the emulator starts without problems.
But when scheduled to start(with the admin account) at startup or at logon it starts it but only for the admin account and not the current user.
Code for the program we run at startup:
internal class Program
{
private static void Main(string[] args)
{
System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
startInfo.FileName = #"C:\Program Files (x86)\Microsoft SDKs\Azure\Storage Emulator\AzureStorageEmulator.exe";
startInfo.Arguments = "start";
process.StartInfo = startInfo;
process.Start();
}
}
Do you have any idea or suggestions how to solve the above problem ?
P.S:I have searched the related topics posted on StackOverflow for issues of the same kind but they ware not much help or the use-case was different.
:)
As per this link: the first time you run your emulator, the emulator environment will need to configure itself: it will create a database in LocalDB and it will register some HTTP ports. In order for the configuration process to succeed, you need administrator privilege.
The next time you'll run the storage emulator, you will no longer need administrator privilege.
So there is a tricky way, just for your reference.
you can use administrator to start the emulator, then wait for a few seconds(it finishes the inialization), stop emulator.
Then you can use normal user account to start it, it would be run for you.
Code like below:
with admin account:
private static void Main(string[] args)
{
System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
startInfo.FileName = #"C:\Program Files (x86)\Microsoft SDKs\Azure\Storage Emulator\AzureStorageEmulator.exe";
startInfo.Arguments = "start";
process.StartInfo = startInfo;
process.Start();
//Wait for finished initialization
System.Threading.Thread.Sleep(TimeSpan.FromSeconds(10));
//After initialization, close the Emulator
Process[] processes = Process.GetProcessesByName("AzureStorageEmulator");
foreach (var p in processes)
{
p.Kill();
}
}
Then you can start Emulator again using your developer account, the code is similar to the above.
It maybe a not good choice, you can also submit an question on here.
At some point of execution of our project we are using Task.Factory.StartNew() for creating asynchronous tasks. which are required to delete some temporary files. following is the code i am using for this :
Task.Factory.StartNew(Function() deleteTempDocs(path))
The problem is that some folders may have privilege restrictions. so i need to run this tasks with Administrator Rights. even if my project is not running in admin Rights. is it possible to set rights like this?
It isn't possible to run a task with Administrator rights, as rights are assigned on a process level. You would have to start a new process, for example a batch file, and get it to run as administrator.
var process = new Process();
var processStartInfo = new ProcessStartInfo();
processStartInfo.Verb = "runas"; // runs as Administrator
processStartInfo.FileName = "myFileDeleter.exe";
process.StartInfo = processStartInfo;
process.Start();
process.WaitForExit();
I'm working on a WPF application targeting .NET 3.0. I need to call an exe which requires administrative privileges. I can get the UAC to prompt for permission by using something like:
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.Verb = "runas";
startInfo.UseShellExecute = true;
startInfo.FileName = "target.exe";
Process p = new Process();
p.StartInfo = startInfo;
p.Start();
My problem is I need to redirect standard output, and doing so with UseShellExecute = true results in an exception stating that:
The Process object must have the UseShellExecute property set to false
in order to redirect IO streams
However, setting it to false results in the UAC not prompting for permission and I get an exception stating:
The requested operation requires elevation
How can I redirect standard output and prompt for UAC?
I have seen this similar question, however the solution is to use the app.manifest to give my application administrative privileges. This is something I cannot do due to requirements.
UseShellExecute must be set to false to redirect IO, and to true to use the Verb property. So you can't.
But this article seems do the magic, although I haven't tested it.
It's written in C++, but a wrapper API can easily be created to be called from C# by using DllImport.
Note: If you want to pass data between the two programs and have access to the target program's source code, you can easily re-design you application to use Named Pipes instead of redirecting standard I/O.
There is another pretty simple solution:
If you want to run a child-executable elevated AND redirect the output (optionally including window hiding), then your main code must be running elevated too. This is a security requirement.
To accomplish this:
Manually edit your app.manifest in your project folder.
Find the comment regarding UAC Manifest Options, you will see the 3 examples of requestedExecutionLevel.
Under the comment, locate the tricky asInvoker which is currently enabled, and replace it with requireAdministrator.
Restart Visual Studio in order to take into effect, and after re-building your app it should have the typical UAC shield icon.
Now your code will run elevated, everything that it launches will be elevated too, and you can also capture output streams. Here is an example in VB.NET:
Dim startInfo As New ProcessStartInfo
startInfo.Verb = "runas"
startInfo.FileName = "subprocess-elevated.exe"
startInfo.Arguments = "arg1 arg2 arg3"
startInfo.WorkingDirectory = Environment.CurrentDirectory
startInfo.WindowStyle = ProcessWindowStyle.Hidden
startInfo.CreateNoWindow = True
Dim p As Process = New Process()
p.StartInfo = startInfo
p.StartInfo.UseShellExecute = False
p.StartInfo.RedirectStandardOutput = True
p.StartInfo.RedirectStandardError = True
p.Start()
Console.WriteLine(p.StandardOutput.ReadToEnd)
Console.WriteLine(p.StandardError.ReadToEnd)
p.WaitForExit()
I'm working on a WPF application targeting .NET 3.0. I need to call an exe which requires administrative privileges. I can get the UAC to prompt for permission by using something like:
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.Verb = "runas";
startInfo.UseShellExecute = true;
startInfo.FileName = "target.exe";
Process p = new Process();
p.StartInfo = startInfo;
p.Start();
My problem is I need to redirect standard output, and doing so with UseShellExecute = true results in an exception stating that:
The Process object must have the UseShellExecute property set to false
in order to redirect IO streams
However, setting it to false results in the UAC not prompting for permission and I get an exception stating:
The requested operation requires elevation
How can I redirect standard output and prompt for UAC?
I have seen this similar question, however the solution is to use the app.manifest to give my application administrative privileges. This is something I cannot do due to requirements.
UseShellExecute must be set to false to redirect IO, and to true to use the Verb property. So you can't.
But this article seems do the magic, although I haven't tested it.
It's written in C++, but a wrapper API can easily be created to be called from C# by using DllImport.
Note: If you want to pass data between the two programs and have access to the target program's source code, you can easily re-design you application to use Named Pipes instead of redirecting standard I/O.
There is another pretty simple solution:
If you want to run a child-executable elevated AND redirect the output (optionally including window hiding), then your main code must be running elevated too. This is a security requirement.
To accomplish this:
Manually edit your app.manifest in your project folder.
Find the comment regarding UAC Manifest Options, you will see the 3 examples of requestedExecutionLevel.
Under the comment, locate the tricky asInvoker which is currently enabled, and replace it with requireAdministrator.
Restart Visual Studio in order to take into effect, and after re-building your app it should have the typical UAC shield icon.
Now your code will run elevated, everything that it launches will be elevated too, and you can also capture output streams. Here is an example in VB.NET:
Dim startInfo As New ProcessStartInfo
startInfo.Verb = "runas"
startInfo.FileName = "subprocess-elevated.exe"
startInfo.Arguments = "arg1 arg2 arg3"
startInfo.WorkingDirectory = Environment.CurrentDirectory
startInfo.WindowStyle = ProcessWindowStyle.Hidden
startInfo.CreateNoWindow = True
Dim p As Process = New Process()
p.StartInfo = startInfo
p.StartInfo.UseShellExecute = False
p.StartInfo.RedirectStandardOutput = True
p.StartInfo.RedirectStandardError = True
p.Start()
Console.WriteLine(p.StandardOutput.ReadToEnd)
Console.WriteLine(p.StandardError.ReadToEnd)
p.WaitForExit()
I'm using system.diagnostics.process to start an msi file in quiet mode. I'm getting an exit code 1625, and I suspect its because UAC is preventing it from running. I've turned off the UAC prompts but no dice...
How can I make sure that I'm properly elevating the privileges of the msiexec so it actually runs?
Thanks,
Isaac
UAC Elevation in Managed Code: Starting Elevated Processes
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.Arguments = "/i " + "\""+Directory.GetCurrentDirectory()+"\\"+msiPath +"\"" +" /q";
startInfo.FileName = "msiexec.exe";
startInfo.Verb = "runas";
Process installProcess = Process.Start(startInfo);
Well, this is what I did, and it works.
Try running your process with the admin privileges and see if the problem persists