Obtain the zxdl.bat or zxdl.ps1 file from a trusted repository. If you are creating a simple download script, here is a basic example:
Since "zxdl script portable" is a bit ambiguous (it could refer to a file format, a coding tool, or a sci-fi MacGuffin), I have drafted a sci-fi thriller story treating it as a revolutionary, dangerous piece of software. zxdl script portable
This guarantees that the environment is identical every time, effectively making the script "portable" by freezing its surroundings. Obtain the zxdl