I can't get all those double slashes to work together please help

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I want to add this command

cmd /min /C "set __COMPAT_LAYER=RUNASINVOKER && start "" "C:\Users\admin\Desktop\Install.exe""

on a proccess.start like this

C#

ProcessStartInfo processStartInfo = new ProcessStartInfo
{
   FileName = "cmd",
   Arguments = "/k cmd /min /C "set __COMPAT_LAYER=RUNASINVOKER && start "" "C:\Users\admin\Desktop\Install.exe"", 
   WindowStyle = ProcessWindowStyle.Hidden,
   UseShellExecute = true,
   ErrorDialog = false
};

but I get errors from the double slashes please help.

What I have tried:

I have tried to split the command into pieces like this "++" but it doesn't work.

Posted 26-Mar-20 10:28am

CyberSecII

Updated 26-Mar-20 12:27pm

phil.o

v6

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gggustafson 26-Mar-20 17:18pm

Have you tried verbatum identifiers? See https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/tokens/verbatim

CyberSecII 26-Mar-20 17:57pm

Can you show me an examble?

1 solution

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phil.o · Accepted Answer · 2020-03-26T12:22:00

Solution 1

You only need to enclose paths between double quotes when there is a space somewhere in the path; which is not the case here. Moreover, if you want a double quote to appear in the string, you have to escape it with a backslash \. Conversely, if you want a backslash to appear in the string, you have to escape it also, which leads to a double backslash \\.
All of this put together:

C#

ProcessStartInfo processStartInfo = new ProcessStartInfo
{
   FileName = "cmd",
   Arguments = "/k cmd /min /C \"set __COMPAT_LAYER=RUNASINVOKER && start C:\\Users\\admin\\Desktop\\Install.exe\"",
   WindowStyle = ProcessWindowStyle.Hidden,
   UseShellExecute = true,
   ErrorDialog = false
};

Posted 26-Mar-20 12:22pm

phil.o

Comments

CyberSecII 26-Mar-20 18:33pm

the command must stay like it was because if you remove the double splashes then the command becomes useless it doesn't do the job. all double splashes most stay there, is there any other way to do that without editing the command itself?
cmd /min /C "set __COMPAT_LAYER=RUNASINVOKER && start "" "C:\Users\admin\Desktop\Install.exe""

phil.o 26-Mar-20 18:40pm

If they must absolutely be here then do as I told you: escape them.

Arguments = "/k cmd /min /C \"set __COMPAT_LAYER=RUNASINVOKER && start \"\" \"C:\\Users\\admin\\Desktop\\Install.exe\"\""

CyberSecII 26-Mar-20 18:56pm

Thank you for taking the time to help me!! You helped me very much to understand how I can fix my error!!

phil.o 26-Mar-20 19:00pm

You're welcome.