Downloading ARC404 1.00 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The following version: 1.0 is the most frequently downloaded one by the program users.
You can execute this PC program on Windows 7/8/10/11 32-bit. The tool is sometimes referred to as "ARC404 for Radioshack PRO-404 PRO-405 and GRE PSR100 PSR200".
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The software relates to System Utilities. The actual developer of the program is BuTel software.
From the developer:
ARC404 is dedicated application for the PC programmable Radioshack PRO-649, PRO-650, PRO-404 (20-404), PRO-405 (20-405), GRE PSR-100, PSR-200 and MFJ-8311 scanners and is the most versatile software available for the Radioshack PRO-404 and PRO-405 scanners.
You may want to check out more software, such as Right PDF printer or iPHUC for Windows, which might be related to ARC404.