CompactRS v2026.5.8-r1740

Security Verification

Build Type	Size	SHA256	VirusTotal
Normal	256 KB	08b23e7d291dc838b499764aea0c8a417847ec5e98859f2f667e268b015e09b6	Scan Result
UPX	125.5 KB	65a32355265d9563f7c414c6cf8216ae87df8f561dd3f8d3d67198504fb62b9b	Scan Result

Note: UPX-compressed binaries may trigger false positives in some antivirus engines. Compare with the Normal build to verify.

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Changes

perf(ui): migrate FileListView to Virtual ListView (LVS_OWNERDATA)

Drastically improves UI responsiveness and eliminates freezing when loading,
filtering, and displaying massive datasets (100,000+ files). By switching
to a Virtual ListView, we bypass the immense memory and CPU overhead of
allocating thousands of Win32 LVITEMW structures.
Key changes:

• Implemented LVN_GETDISPINFOW handler to supply display text dynamically
  on-demand via safe UTF-16 buffer manipulation.
• Replaced LVM_INSERTITEM and LVM_SETITEM with LVM_SETITEMCOUNT and
  LVM_REDRAWITEMS for instant UI updates.
• Introduced filtered_items index mapping in AppState to manage
  search/filter states natively in Rust without rebuilding UI elements.
• Replaced the slow Win32 LVM_SORTITEMS with blazing-fast native Rust
  sorting over the index map.
• Refactored worker thread IPC to track progress using immutable item_id (u32)
  instead of volatile UI row_idx. This prevents data corruption or crashes
  if the user sorts or searches while a compression job is actively running.

Build Information

• Commit: 1176d5f844149fc9ff825ac504d22161d1140f5a
• Author: IRedDragonICY
• Platform: Windows x64
• Rust Toolchain: Nightly

Installation

1. Download compactrs.exe from assets below
2. Run as Administrator (required for WOF compression)
3. Drag and drop files or folders to compress