diff --git a/msgpi/utils.py b/msgpi/utils.py
index ea5120c..30a2701 100644
--- a/msgpi/utils.py
+++ b/msgpi/utils.py
@@ -1,4 +1,5 @@
 import os
+import platform
 import signal
 import math
 import subprocess as sbp
@@ -13,9 +14,11 @@ def run(cmd, timeout, scrnout):
         # sbp.call(cmd)
         proc = sbp.Popen(cmd)
     else:
-        #  FNULL = open(os.devnull, 'w')
-        # sbp.call(cmd, stdout=FNULL, stderr=sbp.STDOUT)
-        proc = sbp.Popen(cmd, stdout=sbp.DEVNULL, stderr=sbp.STDOUT,preexec_fn=os.setsid)
+        if platform.system() == 'Windows':
+            FNULL = open(os.devnull, 'w')
+            proc = sbp.Popen(cmd, stdout=FNULL, stderr=sbp.STDOUT)
+        elif platform.system() == 'Linux':
+            proc = sbp.Popen(cmd, stdout=sbp.DEVNULL, stderr=sbp.STDOUT,preexec_fn=os.setsid)
 
     try:
         stdout, stderr = proc.communicate(timeout=timeout)