Start new process, without being a child of the spawning process

问题:

How would I go about starting a new process without it being the child of the calling process.

Example:

Main Program (Caller.exe)

process.start("file.exe") 

pic http://i44.tinypic.com/vxhj5s.gif

回答1:

If the spawning process (parent) ends before the spawned process (child) does, then the parent-child chain is broken. To make use of this, you'd have to use an intermediate stub-process like so: Caller.exe -> Stub.exe -> File.exe. Here Stub.exe is simple launcher program that ends just after starting File.exe.

回答2:

If you start a process, then you'll be its parent.

Maybe you could try to start your process from cmd.exe instead, so cmd.exe will be the parent.

Process proc = Process.Start(new ProcessStartInfo { Arguments = "/C explorer", FileName = "cmd", WindowStyle = ProcessWindowStyle.Hidden }); 

回答3:

This runs new process without parent:

System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo(); psi.FileName = @"cmd"; psi.Arguments = "/C start notepad.exe"; psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; System.Diagnostics.Process.Start(psi); 

回答4:

The documentation of Process.Start(string fileName) says

a new process that’s started alongside already running instances  of the same process will be independent 

and it says

Starting a process by specifying its file name is similar to  typing the information in the Run dialog box of the Windows Start menu 

which to me seems consistent with independent processes.

So according to the documentation, Process.Start should do what you desire.

回答5:

Here is the code that I'm now using. I thought that it may be useful to someone. It accepts one argument. The argument is a base64 encoded string that decodes to the path of the file that you would like to run.

 Module Module1      Sub Main()         Dim CommandLineArgs As System.Collections.ObjectModel.ReadOnlyCollection(Of String) = My.Application.CommandLineArgs         If CommandLineArgs.Count = 1 Then             Try                 Dim path As String = FromBase64(CommandLineArgs(0))                 Diagnostics.Process.Start(path)             Catch             End Try             End         End If     End Sub      Function FromBase64(ByVal base64 As String) As String         Dim b As Byte() = Convert.FromBase64String(base64)         Return System.Text.Encoding.UTF8.GetString(b)     End Function  End Module 

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