:

: The specific product ID or serial number for that video entry on the FC2 website.

: The underlying compressed file format managed by decompression utilities like WinRAR. How Multi-Part Archives Work

: .exe , .scr , .bat , .vbs , .msi .If extracting the archive yields an executable application file rather than a video file, delete it immediately without double-clicking it. 2. Run Robust Antivirus Scans