Executive Summary

Step 2: Bypass the SafeDisc Driver Block

1. : Windows 11 does not always include these by default, and some older versions of .NET are no longer officially available for download. MSXML 4.0 SP2 Parser

   If deployment is unavoidable, the following steps yielded partial success in a test environment:

   . However, users have successfully installed and run it on Windows 11 by manually addressing legacy software dependencies. PTC Community 1. Essential System Prerequisites

   This method works for approximately 70% of users. It involves tricking the installer and the application into believing they are running on Windows 7.

   • Apply Mathcad 14.0 M020 (latest maintenance release) – mandatory for Windows 11 stability.
   • Replace the main executable with a community-provided high-DPI aware stub (optional, not from PTC).
   • Open Services.msc
   • Look for FLEXnet Licensing Service.
   • Set its startup type to Automatic and start the service.
   • If missing, run C:\Program Files (x86)\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe manually as admin.