DSSim-PC 1.5 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. DSSim-PC lies within Development Tools, more precisely Distribution. We recommend checking the downloaded files with any free antivirus. This free program is an intellectual property of Davis Montenegro. The most popular versions of the tool 1.5, 1.2 and 1.1. The program's installer file is generally known as DSSim.exe.
From the developer:
DSSim-PC is the non deterministic version of the DSSim-RT simulator, this simulator is based on the powerful EPRI's OpenDSS and can be used as a graphical interface for it. The software architecture is based in the actor model (as framework).
You may want to check out more software, such as phGantTimePackage, GetRightToGo or GlassWorks, which might be similar to DSSim-PC.