Use Dependency Walker (or Process Monitor ) to see which DLL fails to load. Common missing DLLs in WinCC 7.5:
Restart your PC. But for minimal downtime, use the Services console.
If the error occurs only with one specific project, the project database files may be locked or corrupted. Close all Siemens software.
To resolve the "A basic application could not be started" error in WinCC 7.5, follow these steps: a basic application could not be started wincc 75 best
Locate SQL Server (WINCC) or SQL Server (WINCCPLUSMIG) and ensure the service is running. If it is stopped, attempt to start it. 4. Re-evaluate Licensing
The quickest way to solve this on newer operating systems is verifying dependencies via the official Siemens Compatibility Tool.
WinCC 7.5 / "A basic application could not be started" message Use Dependency Walker (or Process Monitor ) to
For severe cases where previous WinCC versions have left behind traces in the registry, a followed by a fresh WinCC install is often the most reliable "best" fix .
If the primary steps do not work, consider these more intensive options:
WinCC relies heavily on Microsoft SQL Server. If the WinCC SQL instance is stopped, corrupted, or lacks proper permissions, the basic application will fail to launch. If the error occurs only with one specific
The following table summarizes the most common technical causes and their respective remedies:
What (e.g., Windows 10, Windows Server 2019) are you running?
The error message "A basic application could not be started" typically appears when the WinCC 7.5 application fails to launch or crashes during startup. This error can occur due to various reasons, including corrupted system files, incorrect configuration, or issues with the software installation. To troubleshoot this issue, it's essential to identify the root cause of the problem.