And what does it mean to ask to rebuild? Does it mean to download them all -- or might it do something more intelligent? Can that process be stopped if I don't like what it's doing?
it's more complicated than that.
Rebuild Collection starts an Inventory of What Files are in the Data and Models Paths on your Local Storage.
If a card is found to be fully downloaded, it is them marked as so.
Each Models folder and Data folder for a card, has Inventory controls files.
These files are also scanned, and your collection is set to Match the State of the Special Files.
For the Data folders, any missing Image files are attempted to be redownloaded from the Server.
For the Models folders, Only the Inventory and State of the card is scanned.
No Missing files are Downloaded for the Models Folder.
Also of Importance is this:
Each FIle in the folder is Discovered, Opened, and scanned. This takes time..
BUT, and it is a HUGE BUT...
If your Security software does not have a whitelist, or exception set.
the file access will trigger your Security software to Also, Check every File.
and if you have more than one Security App installed.
This means Multiple file Access, which all TAKEs more time.
on a Large Collection of 5000 plus cards,
this can take 5 to 10 minutes, or up to Hours ( if security software kicks in )
While working, you may see a spinning icon in the system tray.
Or the App screen might just become White or Black and show Not responding.
DO NOT interfere with this rebuild process. It must run to competition.
I ALWAYS shut off ALL of my Security software when Installing or updating iStripper
and I always set exceptions or whitelist the Entire VGHD set of folders and Sub-Folders.
I never let my Security software have access to these folders.
I can always run a Manual Scan on the folders or Files if I need to.
I've been using the Product since the Early 2000's ( even in the 90's )
And Not once have I ever had a REAL security issue caused by the Product.