ControlManager extender (wwctl64i.dll).

[morenos1]

When I try to reference wwctl64i.dll, I get "Invalid extender" ....

[td]

You can only us a 64-bit extender with 64-bit WinBatch.  The bitness of the extender must match the bitness of the executable.  That is why the 64-bit versions of WinBatch extenders were created in the first place.

[morenos1]

Ok I get it. I am used to just double click my WBT files.

[td]

Change the script file name's extension to '.wbt64'.