If you are facing this error, community discussions and official guides suggest the following:

The SSQ (SolidSQUAD) activator for SolidWorks 2017 is one of the most widely circulated cracking utilities for Dassault Systèmes’ flagship CAD software. In theory, it bypasses license verification by emulating a network license server or patching local files. In practice, users frequently encounter during or after activation.

If you have a valid serial number, you should use the standard activation methods to avoid stability issues: Internet Activation : Launch SOLIDWORKS; the Product Activation Wizard should appear automatically if the license is missing. Manual/Email Activation

If a previous crack or older version of SolidWorks is present, the activator gets confused.

When attempting to use unofficial activation tools, such as those released by the group SSQ for SolidWorks 2017, users may occasionally encounter a cryptic error message: (often accompanied by a description like "Overflow" or simply "Unhandled exception occurred"). This error typically halts the activation process, preventing the software from being unlocked.

To understand Error 6, we must understand the tool. The Solidworks.2017.activator-ssq is a batch script or executable created by the Team SolidSQUAD. Its job is to:

Open the activator and select Change Serial Numbers . Use the drop-down to select Force Local Activation Serial Numbers and click the change button.