A Basic Application Could Not Be Started Wincc 75 -

If the project is configured to communicate with a PLC (AS) but the communication driver (e.g., SIMATIC S7 Protocol Suite) is missing, incorrectly configured, or the S7OIEH components are broken, the runtime may fail to initialize the connection layer.

Before executing a fix, understand the most common technical triggers behind this failure:

1) Clean Windows, 2) Disable antivirus and UAC, 3) Install .NET Framework and Message Queuing, 4) Install WinCC 7.5 with the correct Service Pack and Update, 5) Run the Security Controller, 6) Install licenses, 7) Re‑enable security software. a basic application could not be started wincc 75

Try the following solutions in order. Most cases are resolved by steps 1–3.

Siemens WinCC (Windows Control Center) is a powerful SCADA (Supervisory Control and Data Acquisition) system used extensively in industrial automation. However, like any complex software, it is prone to specific runtime errors. One of the most frustrating messages a WinCC engineer can encounter is: If the project is configured to communicate with

Press Win + R , type lusrmgr.msc , and press to open Local Users and Groups. Click on Groups in the left pane.

Step-by-step diagnostic checklist

WinCC uses SQL Server (usually SQL Server 2016 or 2017 for WinCC 7.5). If the project database is corrupted, the basic apps cannot attach to it.