Cannot connect SQL Server After building

Hi there! I'm using SQL Server 2008 as my database. When I run the game under Unity3D Project, everything works well, but if I build a .exe file under Windows 7 and run it outside, I cannot connect the SQL Server anymore. Anyone knows the solution? Do I miss some settings? Thanks!

I worked it out finally! Since I'm using a Chinese version SQL Server 2008, I need a I18N.CJK.dll(China,Japan,Korea) besides I18N.West.dll and I18N.dll under Assets folder. It works well now.