github nmap/npcap v1.73
Npcap 1.73

latest releases: v1.80, v1.79, v1.78...
19 months ago

Installer, SDK, and symbols available from https://npcap.com/#download

  • Fixed an issue causing "failed to set hardware filter to promiscuous mode"
    errors due to a new code path failing to return appropriate error codes. Fix
    by Guy Harris in PR #656.
    Fixes #628.

  • Fixed an issue with WlanHelper causing "error 0x7b" since Npcap 1.70.Fix by
    Hauke Neitzel in PR #652.
    Fixes #649.

  • Fixed an issue preventing capture handles from reattaching after NDIS stack
    pause operations, resulting in persistent ERROR_DEVICE_REMOVED (1617)
    errors. Fixes #627.

  • Restored original behavior of timestamps in the default case,
    PCAP_TSTAMP_HOST_HIPREC_UNSYNCED/TIMESTAMPMODE_SINGLE_SYNCHRONIZATION.
    Since Npcap 0.9994, the timestamp was resynchronized after NDIS stack pause
    operations, which reduced timestamp drift from wall clock time but made it no
    longer monotonic, making packet interval calculations inaccurate. This
    restores the default behavior of WinPcap.

  • Fixed an issue that prevented Npcap 1.71 and 1.72 from being completely
    removed on uninstall. A misconfigured npcap driver service had persisted.
    Fixes #657.

  • Fixed an issue where applications using Npcap 1.20 or later DLLs with a Npcap
    1.00 driver would crash due to a stack buffer overrun when the driver returned
    too many bytes in response to a request for timestamp modes. Additionally,
    changed NPFInstall.exe to attempt to uninstall the Npcap NetCfg component
    prior to installation, in case an improperly-uninstalled component persists.

  • Updated libpcap to 1.10.3.

Don't miss a new npcap release

NewReleases is sending notifications on new releases.