Siemens SIMATIC WinCC flexible

The versiondog system supports the management of SIMATIC WinCC flexible projects and enables the automatic creation of backups as well as HMI cyclical monitoring.


Image: Integration Siemens SIMATIC WinCC flexible

System requirements

From version

WinCC flexible


2006 2007 2008 SP3 2008 SP5
versiondog 2.6  
versiondog 6.0

Other requirements

The WinCC flexible - comparator needs a valid database to be installed to carry out the comparison. The general database driver is the MS SQL server.


SQL instances for WinCC flexible versions on the devices that carry out the comparison

WinCC flexible version MS Data Engine 97 MS Data Engine 2000 MS Data Engine XP MS Access 97 MS Access 2000 MS SQL Server 7.0 MS SQL Server 2000

MS SQL 2005

MS SQL 2014









2008 SP5                


Key features and functions

Component type for SIMATIC WinCC flexible

Integrated SIMATIC WinCC flexible project tree

Automatically detection of differences between the program running on the device and the latest version on the server
Clear presentation of complete change history




FAQ: Why does the comparison of my WinCC flexible projects fail, even though an instance of SQL Server is installed?


If the name of the instance of SQL Server installed on the affected client computer is different from the versiondog standard name (WINCC or WINCCFLEXEXPRESS), then versiondog cannot access the service.

versiondog expects one of these names because in the majority of cases they are the names given to SQL Server instances included with installations of WinCC/WinCC flexible




If the actual name of the SQL Server instance is not the standard name, then the actual name has to be provided to versiondog.

In the following example, the name of the instance is MSSQLEXPRESS:

1. Go to the directory <vdClientArchive>\VD$A\Configuration\Compare

2. Open the file AgentStation.ini or create it with a text editor if it does not already exist

3. Add the following contents, depending on whether you want to compare WinCC or WinCC flexible (MSSQLEXPRESS is the name of the SQL instance that we are using in the example):

  1. [WinCC]
  1. [WinCCFlexible]



If the above entry is one of the versiondog standard names of WINCC or WINCCFLEXEXPRESS, then versiondog will expect that editor to be installed in addition to the instance of SQL Server.

If it is not installed, the comparison will fail.

This means that if no WinCC editor is installed, then you cannot use WINCC or WINCCFLEXEXPRESS as the name of the SQL instance.


If you need an installation guide of the Microsoft SQL Server 2005 Express Edition, contact us


To FAQ list


In this tutorial

Last updated: 24 January 2022