ASP .NET使用日文文件名下载文件

I am currently using Visual Studio 2008 for my ASP .NET application. I am trying to server an excel file via the Response object. The problem is I cannot seem to set the title of the file to Japanese. If I set it to Japanese file name, it gets returned as garbage character. I am using a Japanese IE browser in a Japanese WinXP.I am currently using Visual Studio 2008 for my