Non-system files
The WinPcap-NT installer installs WinPcap-NT non-system files in the %ProgramFiles%\WinPcap or %ProgramFiles(x86)%\WinPcap directory (depending on the WinPcap system version), or in a user defined directory.
| Path | Description |
|---|---|
| %ProgramFiles%\WinPcap |
README.txt, WinPcap-NT uninstaller and links to WinPcap and Napatech websites. For 32-bit WinPcap-NT: rpcapd.exe. |
| %ProgramFiles%\WinPcap\docs | WinPcap documentation. |
| %ProgramFiles%\WinPcap\winpcap_4_1_3 | WinPcap-NT source code. |
| %ProgramFiles%\WinPcap\winpcap_4_1_3_dev | WinPcap Developer’s Pack. |
| %NAPATECH3_ROOT%\config |
The WinPcap-NT configuration file: ntpcap.ini. See The ntpcap.ini File. |
System files
The WinPcap-NT installer installs these system files:
| Path | Files |
|---|---|
| %SystemRoot%\Windows\System32\ | WinPcap-NT 64-bit DLLs: Packet.dll, wpcap.dll, pthreadVC.dll |
| %SystemRoot%\Windows\SysWOW64\ | WinPcap-NT 32-bit DLLs on 64-bit Windows: Packet.dll, wpcap.dll, pthreadVC.dll |
| %SystemRoot%\Windows\System32\drivers\ | npf.sys |
Shortcuts
By default the WinPcap-NT shortcuts are installed into the Windows Start Menu under .
Registry entries
The WinPcap-NT installer registers npf.sys (and rpcapd.exe for 32-bit WinPcap-NT) as a Windows service, creating entries under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services.
Environment variables
These Windows environment variables are set as the result of the WinPcap-NT installation:
| Variable | Example | Description |
|---|---|---|
| PCAP_API | C:\Program Files\WinPcap\winpcap_4_1_3_dev\include | WinPcap Dev. Pack headers, if installed |
| NAPATECH3_ROOT | C:\Program Files\Napatech3 | Napatech Software Suite (3GD) root |