diff --git a/workflow/engine/controllers/installer.php b/workflow/engine/controllers/installer.php
index fe00dfd71..7b228f8da 100755
--- a/workflow/engine/controllers/installer.php
+++ b/workflow/engine/controllers/installer.php
@@ -35,7 +35,7 @@ class Installer extends Controller
 
     public function index ($httpData)
     {
-        if (file_exists($this->path_shared . 'partner.info')){
+        if ((strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') && (file_exists($this->path_shared . 'partner.info'))){
             $this->includeExtJS( 'installer/stopInstall');
             $this->setView( 'installer/mainStopInstall' );
             G::RenderPage( 'publish', 'extJs' );