Appveyor use npcap

.appveyor/InstallWindump.ps1

+wget https://github.com/hsluoyz/WinDump/releases/download/v0.1/WinDump-for-Npcap-0.1.zip -UseBasicParsing -OutFile .\npcap.zip
+Add-Type -AssemblyName System.IO.Compression.FileSystem
+function Unzip
+{
+    param([string]$zipfile, [string]$outpath)
+
+    [System.IO.Compression.ZipFile]::ExtractToDirectory($zipfile, $outpath)
+}
+Unzip $PSScriptRoot"\npcap.zip" $PSScriptRoot"\npcap"
+Remove-Item ".\npcap.zip"
+Move-Item -Force ".\npcap\x64\WinDump.exe" "C:\Windows\System32\windump.exe"
+Remove-Item ".\npcap" -recurse
\ No newline at end of file

appveyor.yml

@@ -11,9 +11,9 @@ environment:
 build: off
 
 install:
-  # Install the winpcap, windump and wireshark suites
-  - choco install -y winpcap wireshark
-  - ps: wget http://www.winpcap.org/windump/install/bin/windump_3_9_5/WinDump.exe -UseBasicParsing -OutFile C:\Windows\System32\windump.exe
+  # Install the npcap, windump and wireshark suites
+  - choco install -y npcap wireshark
+  - ps: .\.appveyor\InstallWindump.ps1
   # Install Python modules
   - "%PYTHON%\\python -m pip install cryptography coverage mock pyreadline keyboard"
   - set PATH="%PYTHON%\\Scripts\\;%PATH%"