32Bit to 64Bit Operating Systems

Since version 3.11 also supports 64-bit operating systems (please refer to software requirements), a WinCC OA project which is created for 32-bit needs to be adapted to 64-bit. In particular any customer-developed 32-bit API-Manager, CONTROL Extensions and Error-Handling must be changed to 64-bit.

To upgrade a 32bit WinCC OA project to a 64bit WinCC OA 3.18 Project it is necessary to copy the 32bit registry entry of the project from:

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ETM\PVSS II\Configs\<project name>]

to:

[HKEY_LOCAL_MACHINE\SOFTWARE\ETM\PVSS II\Configs\<project name>]

To copy the registry entry right-click on the entry <project name> and select export. Remove the entry "Wow6432Node" manually (between "Software" and "ETM") in the exported .reg file. Afterwords re-import the entry with a double click on the .reg file.

Panels that contain 32bit ActiveX objects cannot be successfully upgraded as the objects are not supported anymore.