bhenson wrote:Can I fix this by using the "Create a multi-part Zip file with each part having a maximum size of _ Kbytes" ?
It probably should work.
bhenson wrote:Basically I want to create a full backup once a week or once a month, then do differential backups every week day.
There are several backup example guides in the Help of the program under Fast Backup section (how to set up various types of Fast Backups, one of the example listed have already provided the steps to the scenario you described.
Do note as well that using a 'weekly' variable (like %DAYOFWEEK%, etc) is the largest constant-range calendar-based Variable (ie, consistently cycling through Day 1 - Day 7). If you plan to use a month-based Variable, it may result in Zips being created and/or stored with names in one month (for example, 31), that may not occur on the following month, and so on.
bhenson wrote:I also want the differential backups to be saved in separate files. Like, have one zip for the full backup, and a separate zip for each differential backup. How would I do this exactly?
You'll need to work with Variables for that. See Help section in the program for Variables.
Essentially, you need the profile to auto-assign a different name (with each rotating backup) to the single-Zip file and/or its location by using Variables.