Birds Evolution Pro

A Basic Application Could Not Be Started Wincc 75 May 2026

Troubleshooting the "A Basic Application Could Not Be Started" Error in WinCC 7.5

For automation engineers and plant operators, few things are as frustrating as a Siemens WinCC runtime that refuses to start. One of the more cryptic and persistent errors you might encounter in WinCC V7.5 (and earlier versions) is the message:

6. Run the “Project Duplicator” and Recreate the Project

Siemens provides a tool to clean and rebuild project databases. a basic application could not be started wincc 75

Caution: Only modify these if you understand the security implications. Consider backing up DCOM settings first. Troubleshooting the "A Basic Application Could Not Be

C. Licensing (Automation License Manager)

WinCC requires specific licenses for runtime components (Power Tags, Archive licenses, etc.). Navigate to Windows Logs → Application

  • Navigate to Windows Logs → Application.
  • Look for Error events with source Siemens WinCC or .NET Runtime around the same time as the error.

Do you have WinCC Professional or TIA Portal also installed?

📌 Example output of such a feature

[ERROR] Basic application could not be started (WinCC 7.5)

Simatic HMI Groups: The Windows user must be a member of the "Simatic HMI" user group.