Used by the system to encode and interpret string characters. Codepage formats are not the same for each language. Some languages, such as Japanese and Hindi, have multi-byte characters, while others, such as English and German, need only one byte to represent each character. Each codepage is represented by a unique integer. In Internet Information Services (IIS), the default codepage is the same as CP_ACP. IIS supports Web files that are saved in UTF-8 format or ANSI format.