Index: core/kernel/startup.php
===================================================================
--- core/kernel/startup.php	(revision 13581)
+++ core/kernel/startup.php	(working copy)
@@ -94,7 +94,7 @@
 
 	ini_set('memory_limit', '50M');
 
-	define('MODULES_PATH', FULL_PATH . '/modules');
+	define('MODULES_PATH', FULL_PATH . DIRECTORY_SEPARATOR . 'modules');
 
 	define('EXPORT_BASE_PATH', WRITEBALE_BASE . '/export');
 	define('EXPORT_PATH', FULL_PATH . EXPORT_BASE_PATH);
Index: core/kernel/utility/unit_config_reader.php
===================================================================
--- core/kernel/utility/unit_config_reader.php	(revision 13613)
+++ core/kernel/utility/unit_config_reader.php	(working copy)
@@ -302,7 +302,7 @@
 			shuffle($this->configFiles);
 		}
 		else {
-			$this->findConfigFiles(FULL_PATH . '/core'); // search from core directory
+			$this->findConfigFiles(FULL_PATH . DIRECTORY_SEPARATOR . 'core'); // search from core directory
 			$this->findConfigFiles($folderPath); // search from modules directory
 		}
 
@@ -799,7 +799,7 @@
 				$prefix = array_key_exists('Prefix', $config) ? $config['Prefix'] : '';
 
 				preg_match($this->_moduleFolderRegExp, $filename, $rets);
-				$config['ModuleFolder'] = $rets[1];
+				$config['ModuleFolder'] = str_replace(DIRECTORY_SEPARATOR, '/', $rets[1]);
 				$config['BasePath'] = dirname(FULL_PATH . $filename);
 
 				if (array_key_exists('AdminTemplatePath', $config)) {
@@ -994,7 +994,7 @@
 			$module_paths = Array ();
 
 			foreach ($this->Application->ModuleInfo as $module_name => $module_info) {
-				$module_paths[] = rtrim($module_info['Path'], '/');
+				$module_paths[] = str_replace('/', DIRECTORY_SEPARATOR, rtrim($module_info['Path'], '/'));
 			}
 
 			$module_paths = array_unique($module_paths);
Index: core/units/helpers/minifiers/minify_helper.php
===================================================================
--- core/units/helpers/minifiers/minify_helper.php	(revision 13564)
+++ core/units/helpers/minifiers/minify_helper.php	(working copy)
@@ -144,7 +144,7 @@
 			}
 
 			// got compressed file -> use it
-			return $this->Application->BaseURL(WRITEBALE_BASE) . sprintf($file_mask, $this->compressInfo[$hash]);
+			return $this->Application->BaseURL( str_replace(DIRECTORY_SEPARATOR, '/', WRITEBALE_BASE)) . sprintf($file_mask, $this->compressInfo[$hash]);
 		}
 
 		/**