If you find a "free" ZWCAD 2016 download on a generic download aggregator (like "download.com" clones), check the file hash. Legitimate ZWCAD 2016 setup files are usually around 350MB to 450MB. If the file is 2MB or "setup.exe" with a generic icon, delete it immediately.
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ZWCAD 2016 includes a robust set of Express Tools ( EXPRESSTOOLS ) for advanced text manipulation, layer management, and block attribute extraction. If you find a "free" ZWCAD 2016 download