Sometimes I downloaded some C# code from internet but there are East Asian characters involved such as Japanese or Chinese comments. When I tried to open the code, Normally the Visual Studio 2008 / 2005 IDE did not show correct characters.
I searched out several solutions for this but only the following solution worked for me:
In my Visual Studio 2008:
using “File -> Open -> File… -> Select a file to Open -> (Click the black triangle on the Open button) Open With… -> CSharp Editor whith Encoding or Source Code (Text) Editor With Encoding” -> try various encodings. such as Chinese Simplified (GB2312) – Codepage 936..
Then I saw correct Chinese characters .