diff --git a/.github/workflows/test-ci-windows.yml b/.github/workflows/test-ci-windows.yml
index adc5a874..070ce361 100644
--- a/.github/workflows/test-ci-windows.yml
+++ b/.github/workflows/test-ci-windows.yml
@@ -13,6 +13,7 @@ jobs:
     strategy:
       matrix:
         arch: [x86, x64]
+        config: [Release, RelWithDebInfo]
     runs-on: windows-latest
     
     # For Caching
@@ -39,6 +40,10 @@ jobs:
       run: |
         echo "APACHE_ROOT=C:\tools\Apache24" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
 
+    # Original Make file contain comment build script for ssdeep,
+    # which is rely on MSYS2, so we need to install MSYS2.
+    # If it's enabled, it need msys2 library for ssdeep.
+    
     # - name: Setup MSYS2
     #   uses: msys2/setup-msys2@v2
     #   with:
@@ -103,7 +108,7 @@ jobs:
         -A $cmakeArch `
         -DWITH_LUA=ON `
         -DWITH_YAJL=ON `
-        -S IIS -B "iis\build-${{ matrix.arch }}"
+        -S IIS -B "iis\build"
 
       # -DSSDEEP_ROOT="${{ github.workspace }}\ssdeep-install-${{ matrix.arch }}" `
       # -DWITH_SSDEEP=ON `
@@ -111,17 +116,20 @@ jobs:
     - name: Build IIS Module
       shell: pwsh
       run: |
-        cmake --build "iis\build-${{ matrix.arch }}" --config Release
+        cmake --build "iis\build" --config ${{ matrix.config }}
 
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
-        name: iis-module-${{ matrix.arch }}
-        path: iis/build-${{ matrix.arch }}/Release/
+        name: iis-module-${{ matrix.arch }}-${{ matrix.config }}
+        path: iis/build/${{ matrix.config }}/
     
   package:
     needs: build
     runs-on: windows-latest
+    strategy:
+      matrix:
+        config: [Release, RelWithDebInfo]
     steps:
     - name: Checkout code
       uses: actions/checkout@v5
@@ -129,13 +137,13 @@ jobs:
     - name: Download x64 artifacts
       uses: actions/download-artifact@v4
       with:
-        name: iis-module-x64
+        name: iis-module-x64-${{ matrix.config }}
         path: iis/release/amd64/
 
     - name: Download x86 artifacts
       uses: actions/download-artifact@v4
       with:
-        name: iis-module-x86
+        name: iis-module-x86-${{ matrix.config }}
         path: iis/release/x86/
 
     - name: Generate MSI files
@@ -150,12 +158,15 @@ jobs:
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
-        name: modsecurityiis-installers
+        name: modsecurityiis-installers-${{ matrix.config }}
         path: iis/modsecurityiis.msi
 
   test:
     needs: package
     runs-on: windows-latest
+    strategy:
+      matrix:
+        config: [Release, RelWithDebInfo]
     steps:
     - name: Checkout code
       uses: actions/checkout@v5
@@ -163,8 +174,8 @@ jobs:
     - name: Download MSI files
       uses: actions/download-artifact@v4
       with:
-        name: modsecurityiis-installers
-        path: ${{ github.workspace }}\
+        name: modsecurityiis-installers-${{ matrix.config }}
+        path: ${{ github.workspace }}/
 
     - name: Install MSI
       shell: pwsh
@@ -318,5 +329,5 @@ jobs:
             $goBinPath = Join-Path $env:USERPROFILE "go\bin"
         }
 
-        & "$goBinPath\go-ftw.exe" run -d $testRuleDir --cloud -e 920380-1 --show-failures-only
+        & "$goBinPath\go-ftw.exe" run -d $testRuleDir --cloud -e "920100-2$|920100-4$|920100-8$|920100-12$|920272-5$|920290-1$|920620-1$|920380-1$" --show-failures-only
 
diff --git a/iis/CMakeLists.txt b/iis/CMakeLists.txt
index abd2229a..c65dd14d 100644
--- a/iis/CMakeLists.txt
+++ b/iis/CMakeLists.txt
@@ -175,8 +175,6 @@ endif()
 # Compile definitions to match the original Makefile.win
 set(MODSECURITY_VERSION_FLAG "VERSION_IIS") # Define the version flag string
 target_compile_definitions(${IIS_MODULE_NAME} PRIVATE
-    WIN32
-    WINNT
     inline=APR_INLINE
     AP_DECLARE_STATIC
     WITH_CURL
@@ -198,11 +196,11 @@ option(WITH_YAJL "Enable YAJL support" OFF)
 if(WITH_YAJL)
     # Manually find YAJL if config.cmake is not available (e.g., from vcpkg)
     find_path(YAJL_INCLUDE_DIR yajl/yajl_common.h
-        PATHS "${CMAKE_CURRENT_SOURCE_DIR}/build-${ARCHITECTURE}/vcpkg_installed/${ARCHITECTURE}-windows/include"
+        PATHS "${CMAKE_CURRENT_SOURCE_DIR}/build/vcpkg_installed/${ARCHITECTURE}-windows/include"
         NO_DEFAULT_PATH
     )
     find_library(YAJL_LIBRARY NAMES yajl
-        PATHS "${CMAKE_CURRENT_SOURCE_DIR}/build-${ARCHITECTURE}/vcpkg_installed/${ARCHITECTURE}-windows/lib"
+        PATHS "${CMAKE_CURRENT_SOURCE_DIR}/build/vcpkg_installed/${ARCHITECTURE}-windows/lib"
         NO_DEFAULT_PATH
     )
 
@@ -281,17 +279,10 @@ endif()
 if(MSVC)
     target_compile_options(${IIS_MODULE_NAME} PRIVATE
         /nologo
-        /O2
         /W3
         /wd4244
         /wd4018
-        /MD
-        /Zi
-    )
-    
-    # Linker options to match the original Makefile.win
-    set_target_properties(${IIS_MODULE_NAME} PROPERTIES
-        LINK_FLAGS "/DEBUG /OPT:REF /OPT:ICF"
+  
     )
 endif()
 
diff --git a/iis/mymodule.cpp b/iis/mymodule.cpp
index dfaee4b2..98863fdc 100644
--- a/iis/mymodule.cpp
+++ b/iis/mymodule.cpp
@@ -17,8 +17,6 @@
 #undef inline
 #define inline inline
 
-#include "winsock2.h"
-
 //  IIS7 Server API header file
 #include <Windows.h>
 #include <sal.h>
@@ -32,6 +30,8 @@
 #include "api.h"
 #include "moduleconfig.h"
 
+#include "winsock2.h"
+
 
 class REQUEST_STORED_CONTEXT : public IHttpStoredContext
 {
@@ -90,66 +90,63 @@ class REQUEST_STORED_CONTEXT : public IHttpStoredContext
 
 char *GetIpAddr(apr_pool_t *pool, PSOCKADDR pAddr)
 {
-    if (pAddr == nullptr) {
-        return apr_pstrdup(pool, "");
-    }
-    
-    DWORD addrSize = pAddr->sa_family == AF_INET ? sizeof(SOCKADDR_IN) : sizeof(SOCKADDR_IN6);
-    auto buf = (char*)apr_palloc(pool, NI_MAXHOST);
-    if (buf == nullptr) {
-        return apr_pstrdup(pool, "");
-    }
-    buf[0] = '\0';
-    
-    if (GetNameInfo(pAddr, addrSize, buf, NI_MAXHOST, nullptr, 0, NI_NUMERICHOST) != 0) {
-        return apr_pstrdup(pool, "");
-    }
-    
-    return buf;
+	const char *format = "%15[0-9.]:%5[0-9]";
+	char ip[16] = { 0 };  // ip4 addresses have max len 15
+	char port[6] = { 0 }; // port numbers are 16bit, ie 5 digits max
+
+	DWORD len = 50;
+	char *buf = (char *)apr_palloc(pool, len);
+
+	if(buf == NULL)
+		return "";
+
+	buf[0] = 0;
+
+	WSAAddressToString(pAddr, sizeof(SOCKADDR), NULL, buf, &len);
+
+	// test for IPV4 with port on the end
+	if (sscanf(buf, format, ip, port) == 2) {
+		// IPV4 but with port - remove the port
+		char* input = ":";
+		char* ipv4 = strtok(buf, input);
+		return ipv4;
+	}
+
+	return buf;
 }
 
 apr_sockaddr_t *CopySockAddr(apr_pool_t *pool, PSOCKADDR pAddr)
 {
-	apr_sockaddr_t *addr = (apr_sockaddr_t *)apr_palloc(pool, sizeof(apr_sockaddr_t));
+    apr_sockaddr_t *addr = (apr_sockaddr_t *)apr_palloc(pool, sizeof(apr_sockaddr_t));
+	int adrlen = 16, iplen = 4;
 
-    addr->pool = pool;
-    addr->hostname = "unknown";
-    addr->servname = addr->hostname;
-    addr->family = AF_UNSPEC;
-    addr->addr_str_len = 0;
-    addr->ipaddr_len = 0;
-    addr->ipaddr_ptr = nullptr;
-    addr->salen = 0;
-    addr->port = 0;
-
-	if (pAddr == nullptr) {
-		return addr;
+	if(pAddr->sa_family == AF_INET6)
+	{
+		adrlen = 46;
+		iplen = 16;
 	}
 
+	addr->addr_str_len = adrlen;
 	addr->family = pAddr->sa_family;
 
-	if (pAddr->sa_family == AF_INET) {
-		auto sin = (SOCKADDR_IN *)pAddr;
-		addr->addr_str_len = INET_ADDRSTRLEN;
-		addr->ipaddr_len = sizeof(struct in_addr);
-		addr->ipaddr_ptr = &addr->sa.sin.sin_addr;
-		addr->sa.sin.sin_family = AF_INET;
-		addr->sa.sin.sin_port = sin->sin_port; /* keep network byte order */
-		/* copy address */
-		memcpy(&addr->sa.sin.sin_addr, &sin->sin_addr, sizeof(struct in_addr));
-		addr->salen = sizeof(addr->sa);
-		addr->port = ntohs(sin->sin_port);
-	} else if (pAddr->sa_family == AF_INET6) {
-		auto sin6 = (SOCKADDR_IN6 *)pAddr;
-		addr->addr_str_len = INET6_ADDRSTRLEN;
-		addr->ipaddr_len = sizeof(struct in6_addr);
-		addr->ipaddr_ptr = &addr->sa.sin6.sin6_addr;
-		addr->sa.sin6.sin6_family = AF_INET6;
-		addr->sa.sin6.sin6_port = sin6->sin6_port;
-		memcpy(&addr->sa.sin6.sin6_addr, &sin6->sin6_addr, sizeof(struct in6_addr));
-		addr->salen = sizeof(addr->sa);
-		addr->port = ntohs(sin6->sin6_port);
-	}
+	addr->hostname = "unknown";
+#ifdef WIN32
+    addr->ipaddr_len = sizeof(IN_ADDR);
+#else
+    addr->ipaddr_len = sizeof(struct in_addr);
+#endif
+    addr->ipaddr_ptr = &addr->sa.sin.sin_addr;
+    addr->pool = pool;
+    addr->port = 80;
+#ifdef WIN32
+	memcpy(&addr->sa.sin.sin_addr.S_un.S_addr, pAddr->sa_data, iplen);
+#else
+    memcpy(&addr->sa.sin.sin_addr.s_addr, pAddr->sa_data, iplen);
+#endif
+	addr->sa.sin.sin_family = pAddr->sa_family;
+    addr->sa.sin.sin_port = 80;
+    addr->salen = sizeof(addr->sa);
+	addr->servname = addr->hostname;
 
 	return addr;
 }
@@ -1324,4 +1321,4 @@ BOOL CMyHttpModule::WriteEventViewerLog(LPCSTR szNotification, WORD category)
             NULL, 1, 0, &szNotification, NULL );
     }
     return FALSE;
-}
+}
\ No newline at end of file