In the SAP@Web Studio, you can specify a default language to be used for displaying all your files. This determines the character set used to display your code.
Prerequisites
You must install the National Language Pack for Windows NT.
Procedure
To specify the default language centrally:
Result
The SAP@Web Studio uses the selected language for displaying all files.

The character set used is important only for language-specific texts that you code explicitly in your HTMLBusiness templates. If the templates contain language resource keys, you always see these in the HTML Business editor. Text substitution does not occur until the Internet Transaction Server (ITS) interprets the keys at runtime.
Remember also that the length of the language key depends on the release of your R/3 System: