INT 21 - Novell NetWare - WORKSTATION - SET NetWare ERROR MODE AH = DDh DL = error mode 00h invoke INT 24 on critical I/O errors (default) 01h return NetWare extended error code in AL 02h return error code in AL, mapped to standard DOS error codes Return: AL = previous error mode Note: this function is supported by Advanced NetWare 2.0+ SeeAlso: INT 24