Unfortunately what I have said is correct, the ashQuick.exe schedule scan work around isn't what it was designed for and you have to live with the limitations of this work around and ashQuick.exe, or convert to the Pro version.
Personally I don't see a use for the ashQuick scheduled scan work around for a number of reasons.
The major disadvantage with the task scheduler trick of using ashquick.exe is, it will scan every file of the hdd, partition, folder or file that you set it to scan; even those files not considered a potential threat, this can take a long time. It is possible to add certain folders to the exclusions list for say your media files, etc. This could leave you vulnerable if that folder got infected as it wouldn't be scanned by the on-demand scanner as you have excluded it.
With the different levels of protection of and the fall back of the Standard Shield, I find the need for daily or weekly scheduled scans lessened. I prefer to do a manual scan with my regular weekly maintenance tasks. That Scan is a Standard Scan without archives and it takes a little over 9 minutes, but I don't have a huge amount of data being scanned.