Requirements:

WinDivert 2.2 (included)
Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019 (x86) (download)

Instruction

1. Edit settings

• settings.txt

2. Edit firewall rule tables

• loopback.txt (Loopback rules)
• out.txt (Outbound rules)
• in.txt (Inbound rules)

Rules are executed in sequential order.
The sequence is terminated on a match,
with one of the following actions:

ACCEPT - accept the connection and show activity
ACCEPT_HIDE - accept the connection but hide activity
REJECT - reject the connection with TCP RST
DROP - drops the packet silently

If no match is found, the default is DROP.

# precedes a comment
* represents a wildcard
IP Subnets are allowed in CIDR format eg. 192.168.0.0/24

3. Run firewall.exe as Administrator

Known Limitations

• Ports are not validated and treated as strings. "001" not equals "1"
• Invalid action defaults to DROP
• Only supports TCP and UDP. IPv6, ICMP and other protocols are dropped

for build => open visual studio => right click on soloution => batch build => check releasex86 and debug x86 ==> click build

copy firewall.exe from release folder to main folder and run as Administrator OR copy settings.txt in.txt out.txt loopback.txt WinDivert32.sys WinDivert64.sys WinDivert.dll in Release folder and run the Release version