[Henri]

There are three things you can try when this error occurs:

1)  If the error occurs when MobileSheetsPro is trying to automatically updated, manually uninstall MobileSheetsPro Companion and then download the installer from www.zubersoft.com/mobilesheets/companion.html and run it.  

2)  There may be a permissions issue, so locate the temp directory for your computer (entering %TEMP% in a windows explorer window should take you there). Right-click this directory and ensure that write permissions are given for all users.

3) Try running the installer with administrator privileges (if you are already doing so).

If none of that works, let me know, as there are still other things to try.

Mike

Thanks Mike

After manually uninstall MobilesheetsPro companion, all is ok now. Thanks again

Henri