C# :: How To Install File One By One In Folder

i get the name of file upon every OK click in the list of array.

i want the file name to be written in command prompt to install the file like

C:WindowsSystem32msiexec.exe filename.exe /quiet

fi is array representing the files

following is a code ..

foreach (FileInfo fiTemp in fi)
{
p2.StandardInput.Write("msiexec.exe ");
p2.StandardInput.Write(fiTemp.Name);
MessageBox.Show(fiTemp.Name);
}