SQL Server排序/ ADO。净数据表。语言环境和不同的语言

we have WinForms app which stores data in SQL Server (2000, we are working on porting it in 2008) through ADO.NET (1.1, working on porting to 4.0). Everything works fine if I read data previsouly written in Western-European locale (E.g.: "test", "test ù"), but now we have to be able to mix Western and non-Western alphabets as well (E.g.: "test - ۓےۑ" - these are just random arabic chars).we have WinForms app which stores data in SQL S