cproudlock f95d305cca startnet.cmd: robocopy /MT:16 + /J for faster waxtrace stage ...

Three speed bumps on the waxtrace WinPE stage:
- /MT:16 on the bundle robocopy (was single-thread). Parallelizes the
  small-files-many-of-them part (config + backups + prereqs).
- /J on the single-file FTPak ISO cherry-pick. Unbuffered I/O is
  measurably faster than xcopy on 2 GB-ish files over SMB; xcopy goes
  through the buffered I/O path which double-copies in kernel.
- Swap the FTPak ISO cherry-pick from xcopy to robocopy single-file
  syntax (source dir + dest dir + filename pattern) so we can use /J.

No behavioral change otherwise. Backup ZIP cherry-pick stays on xcopy
(it's ~1 MB, doesn't benefit from /J).

2026-05-24 14:09:06 -04:00

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