I had had similar issues and let a master-user always logged in. Also I use the parameter /l therewith the visibility is true and closed it afterwards per quit-command. The parametrization from my auto-update with various export and mail routines will be controlled through different batch- and vbs-files (different checks and generated for example include-variables for the load-statements).
Cause will propably be that certain parts needed more rights as a background process per default offered and/or that the visibility from program must be set on true. I think it could be solved with a lot of time per searching with process monitor and log-files to find the real causes ....
I'm afraid that you can not perform what you need to do with batch files and windows tasks because:
- it's instable: just change the password of windows user and tasks will no longer function
- applications like QlikView and PowerPoint may need a session compatible with UI and I think that this is the reason because you may have appended processes
I suggest you evaluate softwares that perform this kind of actions.
For example with NPrinting you can schedule exports in various formats (Word, Excel, PowerPoint, HTML, text files) and you can add conditions to this kind of tasks (e.g. generate pptx only when the qvw is reloaded)
I agree with Andrea.
You should find that NPrinting will deliver what you are after.
NPrinting enables you to schedule the sending of QlikView objects to a number of Microsoft formats. You can send the output as an email or to a destination folder. Filtering at recipient level enables you to tailor the data accordingly.
In terms of cost, it is around 30% to 40% of the cost of QlikView Publisher which makes it very tempting.
Have a look at: