I added this to the script Column: Lines (number of lines in text files). I found that your regex's doesn't work if the lines in OnInit contains tabs/multiple spaces like this:
data.name = "Column.File: Lines";
You should add the modifier @runmode:hide to the lines running cmd.exe:
cmd.SetModifier("runmode", "hide");
cmd.RunCommand('cmd /c start '+props.resUrl.replace(/\&/g,"^&"));