# System Parameters

'ZP' | Accept Zero-Length Programs

## Description

Ignores Error #18: Program not loaded/Invalid program format. As of version 4.20, empty program files are considered to be valid.

## Default

Off - RUN, CALL, LOAD or PERFORM commands with an empty program file generate an Error #18.

## See Also

RUN Transfer and Execute a Program
CALL Transfer to Subprogram
LOAD Read Program into Memory
PERFORM Call Subprogram, Share Variables