Compressing folders that are several gigabytes in size may result in an Arithmetic Overflow at the end

[Iridium-IO]

I've probably used a signed integer somewhere I shouldn't :/

• Compression will complete without issue. This is a purely cosmetic bug
• Compression overview will not show because of the error.

System.OverflowException: Arithmetic operation resulted in an overflow.
   at CompactGUI.Compact.CalculateSaving() in \Compact.vb:line 465
   at CompactGUI.Compact.ProgressTimer_Tick(Object sender, EventArgs e) in \Compact.vb:line 179
   at System.Windows.Forms.Timer.OnTick(EventArgs e)
   at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

1938 files within 177 directories were compressed.
13,295,326,334 total bytes of data are stored in 12,246,654,104 bytes.
The compression ratio is 1.1 to 1.

[Iridium-IO]

Found the error:
Dim querysize = 0 was a signed integer, so it overflowed if it tried to read a file size greater than ~2GB.
It's been fixed by changing it to a 64-bit integer:

Dim querysize As Int64 = 0