Access is denied (Running a .bat file)

Question

This is my code to build up a .bat file and run it.

StringBuilder Batch = new StringBuilder();
Batch.AppendLine("@echo off");
Batch.AppendLine("taskkill /IM " + Process.GetCurrentProcess().ProcessName + ".exe /F");
Batch.AppendLine("ping localhost > nul");
Batch.AppendLine("del /f " +  (char)34 + Application.ExecutablePath + (char)34);
Batch.AppendLine("ren " + (char)34 + Application.StartupPath + @"\update.exe" + (char)34 + " " + Process.GetCurrentProcess().ProcessName);
Batch.AppendLine((char)34 + Application.ExecutablePath + (char)34);
Batch.AppendLine("del %0");

File.WriteAllText(Application.StartupPath + @"\update.bat", Batch.ToString(), Encoding.Default);
        Process.Start(Application.StartupPath + @"\update.bat");

However, I get access is denied, I have to run it as a admin, how can I do it?

Are you trying to delete your own executable file? No wonder you get an access denied. — Steve, Aug 12 '13 at 22:08
@Steve It's an auto update software. I download a file called update.exe, which is the new updated software, I kill my current, rename update.exe to my app name, and run it again. And no, thats' not why I'm getting access is denied. — user2674867, Aug 12 '13 at 22:10
If the application is on Program Files that's why you need the Admin privileges. — Rafael, Aug 12 '13 at 22:15
possible duplicate of [Elevating process privilege programatically?](http://stackoverflow.com/questions/133379/elevating-process-privilege-programatically) — metadings, Aug 12 '13 at 22:58

score 0 · Answer 1 · edited May 23 '17 at 12:11

Not an answer to your question, but I think you are not approaching it from the best direction. Instead see this question that provides a very robust answer for what you are actually trying to do: what-is-the-best-way-to-auto-update-a-windows-application

TL;DR If your original installation is "All users" then you will have problems with having to manually elevate permissions. Is the installation is "Per user" then this simplifies the permissions issue.

Access is denied (Running a .bat file)

1 Answers1