SubnetSweep 1.0.0-beta.2
====================

Network discovery tool for Windows. Discovers devices on a /24 (or larger)
subnet via ICMP ping, ARP, port scan, NetBIOS, HTTP banner, SNMP, and WMI.

----- System requirements -----

  Windows 10 22H2 or Windows 11 (x64)
  Microsoft Edge WebView2 Runtime (preinstalled on Windows 11; on older
  Windows 10 install from https://go.microsoft.com/fwlink/p/?LinkId=2124703)
  Local administrator OR firewall allowance for the subnet you want to scan
  ~50 MB of free RAM while running

----- Installation -----

  1. Extract this archive to a folder of your choice (Desktop, Program Files,
     C:\Tools, anywhere). Both files must stay together in the same folder.
  2. Double-click subnetsweep.exe to launch.

  This is a portable build. No system-wide installation, no registry changes.
  Scan history and settings are stored per user in the WebView2 user data folder.

----- First run -----

  On first launch you will see:

    1. End User License Agreement -- review and accept.
    2. Welcome screen with two options:
         * "Start 30-day evaluation"  -- use the full product, no key needed
         * "I have a license key"     -- enter your license string

  Both options unlock the full feature set. Choose evaluation if you want
  to try SubnetSweep before purchasing.

----- Evaluation mode -----

  Initial evaluation: 30 days, unlocked.
  After 30 days you can extend in-app for another 30 days; the first two
  extensions are one-click. Beyond that, contact admin@ititsolutions.com
  or just keep extending -- our policy is adoption first.

  To remove evaluation prompts entirely, purchase a license at
  https://ititsolutions.com (coming soon) or email admin@ititsolutions.com.

----- License activation -----

  When you receive a license key (format: ITIT-SUBNETSWEEP-...-...) by email:

    1. Open SubnetSweep (start a fresh launch or click "Enter license key"
       from the in-app evaluation status bar).
    2. Paste the entire key string into the activation field.
    3. Click Activate.

  The signature is verified locally with embedded Ed25519 cryptography --
  no network call, no phone-home. Your license works offline forever.

  If activation fails the dialog will display the reason (malformed,
  signature does not verify, expired, wrong product code).

----- Running a scan -----

  1. The app auto-detects your local subnet on launch. Adjust the subnet
     (CIDR) or list multiple subnets in the Subnets panel.
  2. Choose discovery methods. Ping and ARP are always fastest. SNMP and
     WMI require credentials and only return data on devices you have
     access to.
  3. Click Start Scan. Results stream in live.
  4. Click any row to open the Device Detail panel.
  5. Export via Toolbar > Export > CSV / JSON, or save the entire
     session as a .nsscan file you can reopen later.

----- Troubleshooting -----

  Window opens but is blank
    Your machine is missing the WebView2 Runtime.
    Install: https://go.microsoft.com/fwlink/p/?LinkId=2124703

  SmartScreen warning on first run
    "Windows protected your PC ... Don't run."
    Expected for unsigned beta builds. Click "More info" then "Run anyway."
    Code signing arrives in 1.1.

  License dialog rejects my valid key
    Make sure you copied the ENTIRE string starting with ITIT-SUBNETSWEEP-.
    The key contains hyphens that are part of the format -- do not remove
    them. Spaces are tolerated but not other punctuation.

  No devices found
    Verify (a) your subnet is correct, (b) your firewall is not blocking
    outbound ICMP/UDP/TCP from subnetsweep.exe, (c) target devices are
    reachable on the same VLAN.

  SNMP / WMI returns nothing
    These require credentials (community string for SNMP, domain account
    for WMI). Devices outside your auth scope will not respond.

----- File integrity -----

  Verify your archive was not corrupted in transit:
    Get-FileHash .\SubnetSweep-1.0.0-beta.2-portable.zip -Algorithm SHA256

  Compare against the value in SubnetSweep-1.0.0-beta.2-portable.zip.sha256
  (or the MANIFEST file in the same download folder).

----- Support -----

  admin@ititsolutions.com   Sales, licensing, support
  https://ititsolutions.com  Product page (coming soon)

  ITITSolutions Software LLC, 2026.