Security tools can block or slow CAM calculations, file writes, and dongle checks. If you see unusual errors in MillBox or SUM3D, first try temporarily disabling third-party antivirus on the CAM station only. If that is not possible, add the exclusions below.
Tip: After adding exclusions, restart the PC so the changes apply.
What to exclude
Processes
Add these executables to your AV/EDR allowlist.
MILLBOX.EXE
CAMWIN.EXE and CAMWINC.EXE (SUM3D / Strategy Editor components)
File types
Allow read/write for:
.CAM, .TMP, .MBP
Folders
Exclude the MillBox install, working, and output locations. Examples:
Install folder
C:\MillBox_RolandEd24\millbox\
(Your folder name may differ by edition or year, for exampleMillBox_*23*, MillBox_*24*.)
Projects / Jobs
Your custom projects path, e.g.C:\Users\<you>\MillBox Projects\
CNC Output
Your configured CNC output path, e.g.C:\MillBox_RolandEd24\CNC\
Temp / Cache
Any MillBox temp path you configured in Preferences
Replace / Libraries (if stored outside the install folder)
e.g.C:\REPLACE\ or your network location
Note: If you use a network share for projects or CNC output, add server-side exclusions for those UNC paths too.
How to add exclusions in Windows Security
Open Windows Security
Virus & threat protection → Manage settings
Scroll to Exclusions → Add or remove exclusions
Add each Folder, File, and File type listed above
Figure 1. Windows Security exclusions for MillBox (apps, folder, .CAM/.MBP).
Third-party antivirus or endpoint protection
Create allow rules for the processes and folders above
Turn off real-time scanning of CNC output and temp folders if your tool allows per-path control
Exclude USB dongle drivers if your product flags them
Verify after changes
Launch MillBox and open a typical job
Run a short calculation and confirm no new warnings appear
Check that files are created in your CNC output folder instantly
If Strategy Editor is licensed, open SUM3D and save a test strategy
Quick checklist
Processes allowed: MILLBOX.EXE, CAMWIN.EXE, CAMWINC.EXE
File types allowed: .CAM, .TMP, .MBP
Install, Projects, CNC output, Temp, and Library folders excluded
PC restarted after exclusions
Network share exclusions added if used
Need Further Help?
Need a prebuilt exclusion list tailored to your exact paths? Email [email protected] with screenshots of your Preferences → General Settings paths and we will prepare one for your IT team.