Compatibility: 5.0+
Expects: AX    b700H
                                                                  
Returns: AL    status: 00H = APPEND is not installed
ffH = APPEND is installed
                                                                  
Info: Checks to see if the DOS APPEND.EXE data-search-path utility has
been installed and is resident in memory.

Append changes its behavior significantly, depending upon the
current option settings.  See INT 2fH b706H (query APPEND option
settings) before assuming that APPEND will take a particular
action.

- -

INT 2fH b700H: Is APPEND.EXE Installed?