The world`s foremost network protocol analyzer for Windows

Wireshark (64-bit)

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Wireshark 1.6.6 (64-bit)

  -  21.71 MB  -  Freeware
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Wireshark 1.6.6 (64-bit).


For those interested in downloading the most recent release of Wireshark (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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Download Wireshark 1.6.6 (64-bit)

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What's new in this version:

# The following bugs have been fixed:
- ISO SSAP: ActivityStart: Invalid decoding the activity parameter as a BER Integer. 
- Forward slashes in URI need to be converted to backslashes if WIN32. 
- Character echo pauses in Capture Filter field in Capture Options.
- Some PGM options are not parsed correctly. 
- dumpcap crashes when capturing from pipe to a pcap-ng file (e.g., when passing data from CACE Pilot to Wireshark). 
- Unable to rearrange columns in preferences on Windows. (Bug 6077) (Note: this bug still affects the 64-bit package)
- No error for UDP/IPv6 packet with zero checksum. 
- Wireshark installer doesn't add access_bpf in 10.5.8. 
- Corrupted Diameter dictionary file that crashes Wireshark. 
- packetBB dissector bug: More than 1000000 items in the tree -- possible infinite loop. 
- ZEP dissector: Timestamp not always displayed correctly. Fractional seconds never displayed. 
- GOOSE Messages don't use the length field to perform the dissection. 
- Ethernet traces in K12 text format sometimes give bogus "malformed frame" errors and other problems. 
- max_ul_ext isn't printed/decoded to the packet details log in GTP protocol packet. 
- non-IPP packets to or from port 631 are dissected as IPP. 
- lua proto registration fails for uppercase proto / g_ascii_strdown problem. 
- no menu item Fle->Export->SSL Session Keys in GTK. 
- IAX2 dissector reads past end of packet for unknown IEs. 
- TShark 1.6.5 immediately crashes on SSL decryption (every time). 
- USB: unknown GET DESCRIPTOR response triggers assert failure. 
- IEEE1588 PTPv2 over IPv6. 
- Patch to fix DTLS decryption. 
- Expression... dialog crash. 
- display filter "gtp.msisdn" not working. 
- Multiprotocol Label Switching Echo - Return Code: Reserved (5).
- ISAKMP : VendorID CheckPoint : Malformed Packet. 
- Adding a Custom HTTP Header Field with a trailing colon causes wireshark to immediately crash (and crash upon restart). 
- Radiotap dissector lists a bogus "DBM TX Attenuation" bit. 
- MySQL dissector assertion. 
- Radiotap header format data rate alignment issues. 
# Updated Protocol Support
- ANSI A, BSSGP, DIAMETER, DTLS, GOOSE, GSM Management, GTP, HTTP, IAX2, IEEE 802.11, IPP, ISAKMP, ISO SSAP, MP2T, MPLS, MySQL, NTP, PacketBB, PGM, Radiotap, SSL, TCP, UDP, USB, WSP
# New and Updated Capture File Support
- Endace ERF, Pcap-NG, Tektronix K12

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