Index: branches/RC/core/install/utf.php
===================================================================
diff -u -r9152 -r9206
--- branches/RC/core/install/utf.php	(.../utf.php)	(revision 9152)
+++ branches/RC/core/install/utf.php	(.../utf.php)	(revision 9206)
@@ -32,6 +32,10 @@
 			$langs[$lang_id]['mysql_charset'] = 'cp1251';
 			break;
 
+		case 'WINDOWS-1257':
+			$langs[$lang_id]['mysql_charset'] = 'cp1257';
+			break;
+
 		case 'UTF-8':
 			// when column have latin1 collation, but it's data is encoded to utf8 (from web browser)
 			$langs[$lang_id]['mysql_charset'] = 'utf8';