silentcmd is a program for running commands such as batch files or command-line executables without the command prompt window showing.
Usage: silentcmd COMMAND
Requires: Windows XP/Vista, Microsoft .NET Framework 2.0 or later.
License: GNU General Public License version 3
Download binary: silentcmd-126.96.36.199-bin.zip
Download source: silentcmd-188.8.131.52-src.zip
%COMSPEC% must accept commands in the form of "exepath /c COMMAND", such as cmd.exe does.
You can put findexe.exe in C:\Windows\ to allow access from the Run dialog or Command Prompt.