Shutdown Process Visibility When Closing LaunchBox

📋 Summary

Add a visible shutdown progress window when closing LaunchBox or Big Box that clearly shows which background processes are being completed before the application fully exits.

❗ Problem

Some users experience situations where:

• LaunchBox or Big Box appears to close, but remains running in Task Manager

• Relaunching triggers the “Another instance is already running” message

• Multiple hidden Big Box instances appear in Windows audio mixer

• Users must manually end processes in Task Manager

While the app is often still writing data, creating backups, or finalizing operations, this is not visible to the user. From their perspective, the app has already closed — leading to confusion and frustration.

💡 Proposal

When exiting LaunchBox or Big Box, display a small shutdown window that shows:

• Saving data

• Writing settings

• Creating backup (if enabled)

• Finalizing processes

This window would:

• Prevent the app from appearing fully closed until cleanup is complete

• Show a progress indicator or step-by-step status

• Optionally allow users to cancel or force close (with warning)

📦 Benefits

• Makes background cleanup transparent and understandable

• Reduces confusion around the “Another instance is already running” message

• Prevents users from reopening the app before shutdown is complete

• Improves perceived stability and polish

💡 Notes

• Should only appear if shutdown takes longer than a short threshold (e.g., 1–2 seconds)

• Default behavior could remain silent for very fast exits

• Could help with troubleshooting by identifying which shutdown step is hanging