Used CloseTheDoor for Windows?
Editors’ Review
Download.com staff
Top Recommended Alternative
Pros
- Identifies all listening TCP and UDP ports
- Supports both IPv4 and IPv6 protocols
- Links open ports to associated program files
- Provides the ability to disable listening ports
Cons
- Lacks real-time or continuous network monitoring
- No feature to export or report scan results
- Does not provide automated security recommendations
- No functionality for creating custom security rules
Explore More

IP Finder
Free
Monochrome
Free
nfsAxe Windows NFS Client and NFS Server
Trial version
LAN Bridger (64-bit)
FreeNetwork Star Pro Edition - B/W
PaidLocal TCP Port Opener
FreeWinDigits - Monochrome Version
PaidX10Net
Trial versionNewbie DB
PaidWhat Are You Doing?
Trial versionNetwork Star Device Edition
Paid
Ethernet Bridge
Free