The short answer is . Siemens officially states that ProTool is not supported on Windows 10.

If you are looking for documentation or guides on how others have managed this integration, you should refer to these Siemens Industry Online Support (SIOS) resources: Migration of ProTool Projects to WinCC flexible

| Error Message | Likely Cause | Solution | |---|---|---| | "The MPI-PC adapter is not installed" | Missing driver in the VM | Install driver from Siemens support (Entry ID: 59193579) | | "Port already in use" | COM port conflict in Windows 10 host | In VMware, set the USB adapter to auto-connect; disable serial port enumeration in host | | "Project cannot be opened: Corrupt database" | ProTool uses Access 97 database engine | Run ProTool as admin; install MDAC 2.8 in the VM | | "Simulation error: Timeout" | Firewall or network stack interference | Disable Windows Firewall in the VM for private networks |

For reliability, the industry standard approach is to stop trying to run legacy software on the host Windows 10 OS and instead run it inside a Virtual Machine (VM).

(including ProTool/Lite, ProTool/Pro, and ProTool/CS) was the legacy HMI configuration software for text-based displays (OP3, OP7, OP17) and early graphic panels (TP27, OP27, OP37). It was replaced by WinCC flexible (2005) and later by WinCC (TIA Portal).

Use a VM running Windows XP to host the ProTool installation. This is the most stable way to view projects or prepare for migration. Experimental

However, as technology evolves, so does operating system support. Siemens officially discontinued ProTool in the mid-2000s, replacing it with WinCC flexible and later WinCC (TIA Portal). This leaves a critical question for plant managers, maintenance engineers, and system integrators:

When Windows 10 was released, the development of ProTool had long since ceased. The software relies on older system architectures, registry keys, and database structures that Windows 10 handles differently (or not at all).

If you absolutely must run ProTool on a Windows 10 computer—for example, to make a quick change to a running machine and you lack the budget for a migration—there are a few technical workarounds.