if you want support multi-language encoding on Windows CE
need setting below two SYSGEN variables
SYSGEN_MLANGALL, Provides the full Internet Explorer Multiple Language API.Charset and encoding information reside in the resource file.
SYSGEN_MLANG_REG, same API support as MLANGALL, but optional charset and encoding information reside in the system registery.
When you use CultureInfo of Net Compact Framework to support multi-language will get "PlatfromNotSupportedException" if not set the sysgen variables.