Connect IIS to Apache Tomcat in under a minute — no ISAPI, no hassle.
BonCode is a lightweight, fully managed IIS native module that bridges IIS to any AJP13-compatible servlet container — Tomcat, JBoss, Jetty, and CFML engines like Lucee, Railo, OpenBD, and Adobe ColdFusion.
Browser ──► IIS ──► BonCode AJP13 Module ──► Tomcat / JBoss / Jetty / CFML Engine
No ISAPI DLLs. No virtual directory gymnastics. No IIS6-era workarounds. Just a clean, modern IIS extensibility module that gets out of your way.
- Download the latest release from GitHub Releases
- Run
Connector_Setup.exe— the installer configures everything automatically - Done. Your IIS site is now routing to Tomcat.
For scripted deployments, the connector supports silent command-line installation — ideal for CI/CD pipelines and automated provisioning.
| BonCode Connector | Legacy ISAPI Connector | |
|---|---|---|
| Architecture | Modern IIS Native Module (managed code) | ISAPI filter (IIS6 era) |
| Install | One-click installer or CLI | Manual DLL registration & config |
| IIS Impact | Zero interference with non-Java requests | Can block or slow unrelated requests |
| Bitness | Single build, any process (32/64-bit) | Separate DLLs required |
| Configuration | IIS UI + inheritable config hierarchy | Manual XML editing |
| Virtual Directories | Not required | Required |
- Partial stream flushing for faster time-to-first-byte
- Tomcat thread awareness — won't overload or drop connections
- Reduced traffic and processing on both IIS and Tomcat sides
- Connect to multiple Tomcat instances from a single IIS site
- Works on Windows 7 through Windows 11 and Windows Server 2003 through 2025
- Supports IIS 7.0+ (all modern versions)
- Single build handles both 32-bit and 64-bit worker processes
- Compatible with Adobe ColdFusion 10–2021 AJP dialects
- Compatible with Lucee, Railo, and OpenBD CFML engines
- Built-in simple-security for web administration pages (Lucee, Tomcat, Railo, OpenBD, ColdFusion)
- Client fingerprint mechanism for safer sessions
- Full SSL passthrough to the servlet container
- IPv6 support
- Complete HTTP header forwarding (including previously unavailable headers)
- Accurate SSL data transfer to the servlet container
- Improved load balancer header translation for correct client IP detection
- Alternate Path-Info header transmission via AJP
- All request headers transferred faithfully
- Configure directly in the IIS Manager UI
- Configuration inherits to sub-paths and virtual sites
- Easy install and uninstall
- No virtual directories or virtual mappings needed
| Backend | Supported |
|---|---|
| Apache Tomcat | ✅ |
| JBoss / WildFly | ✅ |
| Jetty | ✅ |
| Lucee | ✅ |
| Railo | ✅ |
| OpenBD | ✅ |
| Adobe ColdFusion (10–2021) | ✅ |
| Web Methods | ✅ |
Any AJP13-compatible server will work.
If you're replacing a reverse proxy or URL rewrite setup, BonCode gives you:
- Fully integrated SSL passthrough — no SSL termination proxy needed
- Your servlets receive correct HTTP headers, URLs, and client IPs
- No double-hop overhead — direct AJP13 binary protocol
- Run alongside other ISAPI connectors (e.g., Shibboleth) without conflict
- 📖 Full manual — included in the release ZIP as
BonCode_Tomcat_Connector_Manual.pdf - 🌐 Online documentation — includes manual install instructions (automated installer recommended)
See the Releases page for the full changelog. Detailed release notes are also available in BonCodeAJP13/ReadMe Notes.txt in the source tree.
Found a bug or have a feature request? Please open an issue on the GitHub Issues page.
This solution targets .NET Framework 4.8 and requires Visual Studio with the .NET Framework 4.8 targeting pack.
# Build the solution
msbuild ConsoleTCPIP.sln /p:Configuration=Release
# Run tests
msbuild ConsoleTCPIP.sln /p:Configuration=Release
dotnet test Connector.Tests/├── BonCodeAJP13/ # Core AJP13 protocol library
│ ├── ServerPackets/ # Packets sent to Tomcat
│ ├── TomcatPackets/ # Packets received from Tomcat
│ └── Config/ # Configuration provider
├── BonCodeIIS/ # IIS native module (managed handler)
├── ConsoleTCPIP/ # Standalone TCP test console
├── Connector.Tests/ # Unit tests
└── ConsoleTCPIP.sln # Solution file
BonCode AJP13 Connector — Copyright 2011-2026 © Bilal Soylu