ASA Database Administration Guide
File Locations and Installation Settings
Environment variables
ASCHARSET=charset
Charset is a character set name. For example, setting ASCHARSET=cp1252 sets the default character set to cp1252.
The first of the following values set determines the default character set.
ASCHARSET environment variable
query the operating system
If no character set information is specified, use iso_1 for Unix, or cp850 otherwise.
This environment variable is not supported on CE or NetWare