Fix #4306
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index 883973a..b9e310a 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -267,7 +267,7 @@
 	 */
 	protected function _version()
 	{
-		return 'SELECT @@VERSION AS ver';
+		return "SELECT SERVERPROPERTY('ProductVersion') AS ver";
 	}
 
 	// --------------------------------------------------------------------