diff --git a/system/application/config/mimes.php b/system/application/config/mimes.php
index 438f610..f31fff2 100644
--- a/system/application/config/mimes.php
+++ b/system/application/config/mimes.php
@@ -15,7 +15,7 @@
 				'dms'	=>	'application/octet-stream',
 				'lha'	=>	'application/octet-stream',
 				'lzh'	=>	'application/octet-stream',
-				'exe'	=>	'application/octet-stream',
+				'exe'	=>	array('application/octet-stream', 'application/x-msdownload'),
 				'class'	=>	'application/octet-stream',
 				'psd'	=>	'application/x-photoshop',
 				'so'	=>	'application/octet-stream',
@@ -48,7 +48,7 @@
 				'swf'	=>	'application/x-shockwave-flash',
 				'sit'	=>	'application/x-stuffit',
 				'tar'	=>	'application/x-tar',
-				'tgz'	=>	'application/x-tar',
+				'tgz'	=>	array('application/x-tar', 'application/x-gzip-compressed'),
 				'xhtml'	=>	'application/xhtml+xml',
 				'xht'	=>	'application/xhtml+xml',
 				'zip'	=>  array('application/x-zip', 'application/zip', 'application/x-zip-compressed'),
@@ -102,4 +102,4 @@
 
 
 /* End of file mimes.php */
-/* Location: ./system/application/config/mimes.php */
\ No newline at end of file
+/* Location: ./application/config/mimes.php */
\ No newline at end of file