如何在当前cmd.exe上下文中执行Shell命令？

Question

So, I have a .Net utility. I need to use a utility(ilasm and ildasm) that is sometimes in the PATH variable and sometimes not. Specific times when it's in the path includes when using the Visual Studio command line script.. and when it's not is when you just launch a regular cmd.exe instance.

All of the information I've seen for executing a shell command from .Net imply that you can just create a new instance of cmd.exe, but in this case, the PATH variable will be different. The other possible thing is manually parsing the PATH variable and execute it directly with a ProcessStartInfo when found, but this seems error prone and unnecessary

Is there a tool or anything that would help me with this situation? How should I go about executing these utilities?

Answer 1

When you start cmd.exe, you can set its environment path:

 var psi = new ProcessStartInfo("cmd.exe");
 psi.UseShellExecute = false;
 psi.EnvironmentVariables["path"] = "mypath";
 Process.Start(psi);

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