Downloading WSM 4.1.24 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular versions of the program 4.1, 3.5 and 1.0. WSM.exe or WSM_term.exe are the frequent file names to indicate this program's installer. This free program was originally created by Sennheiser electronic GmbH & Co. KG. WSM relates to System Utilities.
From the developer:
WSM is a program designed to remotely monitor and control wireless systems. It assists users in setting up and coordinating the frequencies of wireless microphones and personal monitors by having the most important parameters handily displayed on a single screen.
You may want to check out more software, such as WSMS Demo, WSM - QuickCopy or WiNRADiO G33WSM, which might be similar to WSM.