diff --git a/lib/start-proxy-action-post.js b/lib/start-proxy-action-post.js
index 6fbd47eb27..8ae13dd178 100644
--- a/lib/start-proxy-action-post.js
+++ b/lib/start-proxy-action-post.js
@@ -53,7 +53,12 @@ async function runWrapper() {
         // Kill the running proxy
         const pid = core.getState("proxy-process-pid");
         if (pid) {
-            process.kill(Number(pid));
+            try {
+                process.kill(Number(pid));
+            }
+            catch (error) {
+                logger.error(`Failed to kill proxy process: ${(0, util_1.getErrorMessage)(error)}`);
+            }
         }
         const config = await configUtils.getConfig(actionsUtil.getTemporaryDirectory(), logger);
         if ((config && config.debugMode) || core.isDebug()) {
diff --git a/lib/start-proxy-action-post.js.map b/lib/start-proxy-action-post.js.map
index 04159830b9..fd5601ebe1 100644
--- a/lib/start-proxy-action-post.js.map
+++ b/lib/start-proxy-action-post.js.map
@@ -1 +1 @@
-{"version":3,"file":"start-proxy-action-post.js","sourceRoot":"","sources":["../src/start-proxy-action-post.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA;;;;GAIG;AACH,oDAAsC;AAEtC,4DAA8C;AAC9C,6CAAgD;AAChD,4DAA8C;AAC9C,uDAA8D;AAC9D,uCAA6C;AAC7C,iCAAoE;AAEpE,KAAK,UAAU,UAAU;IACvB,MAAM,MAAM,GAAG,IAAA,0BAAgB,GAAE,CAAC;IAElC,IAAI,CAAC;QACH,4CAA4C;QAC5C,WAAW,CAAC,aAAa,EAAE,CAAC;QAE5B,yBAAyB;QACzB,MAAM,GAAG,GAAG,IAAI,CAAC,QAAQ,CAAC,mBAAmB,CAAC,CAAC;QAC/C,IAAI,GAAG,EAAE,CAAC;YACR,OAAO,CAAC,IAAI,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC;QAC5B,CAAC;QAED,MAAM,MAAM,GAAG,MAAM,WAAW,CAAC,SAAS,CACxC,WAAW,CAAC,qBAAqB,EAAE,EACnC,MAAM,CACP,CAAC;QAEF,IAAI,CAAC,MAAM,IAAI,MAAM,CAAC,SAAS,CAAC,IAAI,IAAI,CAAC,OAAO,EAAE,EAAE,CAAC;YACnD,MAAM,WAAW,GAAG,IAAI,CAAC,QAAQ,CAAC,gBAAgB,CAAC,CAAC;YACpD,MAAM,CAAC,IAAI,CACT,wEAAwE,CACzE,CAAC;YACF,IAAI,MAAM,EAAE,aAAa,CAAC,IAAI,KAAK,SAAS,EAAE,CAAC;gBAC7C,MAAM,CAAC,OAAO,CACZ,qFAAqF,CACtF,CAAC;gBACF,OAAO;YACT,CAAC;YACD,MAAM,aAAa,GAAG,MAAM,IAAA,6BAAgB,GAAE,CAAC;YAC/C,IAAA,gCAAyB,EAAC,aAAa,EAAE,MAAM,CAAC,CAAC;YAEjD,MAAM,gBAAgB,GAAG,MAAM,IAAA,2CAAyB,EACtD,MAAM,EACN,aAAa,CAAC,IAAI,CACnB,CAAC;YAEF,MAAM,gBAAgB,CAAC,cAAc,CACnC,gBAAgB,EAChB,CAAC,WAAW,CAAC,EACb,WAAW,CAAC,qBAAqB,EAAE,EACnC;gBACE,wFAAwF;gBACxF,aAAa,EAAE,CAAC;aACjB,CACF,CAAC;QACJ,CAAC;IACH,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,gEAAgE;QAChE,MAAM,CAAC,OAAO,CACZ,wCAAwC,IAAA,sBAAe,EAAC,KAAK,CAAC,EAAE,CACjE,CAAC;IACJ,CAAC;AACH,CAAC;AAED,KAAK,UAAU,EAAE,CAAC"}
\ No newline at end of file
+{"version":3,"file":"start-proxy-action-post.js","sourceRoot":"","sources":["../src/start-proxy-action-post.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA;;;;GAIG;AACH,oDAAsC;AAEtC,4DAA8C;AAC9C,6CAAgD;AAChD,4DAA8C;AAC9C,uDAA8D;AAC9D,uCAA6C;AAC7C,iCAAoE;AAEpE,KAAK,UAAU,UAAU;IACvB,MAAM,MAAM,GAAG,IAAA,0BAAgB,GAAE,CAAC;IAElC,IAAI,CAAC;QACH,4CAA4C;QAC5C,WAAW,CAAC,aAAa,EAAE,CAAC;QAE5B,yBAAyB;QACzB,MAAM,GAAG,GAAG,IAAI,CAAC,QAAQ,CAAC,mBAAmB,CAAC,CAAC;QAC/C,IAAI,GAAG,EAAE,CAAC;YACR,IAAI,CAAC;gBACH,OAAO,CAAC,IAAI,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC;YAC5B,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,MAAM,CAAC,KAAK,CAAC,iCAAiC,IAAA,sBAAe,EAAC,KAAK,CAAC,EAAE,CAAC,CAAC;YAC1E,CAAC;QACH,CAAC;QAED,MAAM,MAAM,GAAG,MAAM,WAAW,CAAC,SAAS,CACxC,WAAW,CAAC,qBAAqB,EAAE,EACnC,MAAM,CACP,CAAC;QAEF,IAAI,CAAC,MAAM,IAAI,MAAM,CAAC,SAAS,CAAC,IAAI,IAAI,CAAC,OAAO,EAAE,EAAE,CAAC;YACnD,MAAM,WAAW,GAAG,IAAI,CAAC,QAAQ,CAAC,gBAAgB,CAAC,CAAC;YACpD,MAAM,CAAC,IAAI,CACT,wEAAwE,CACzE,CAAC;YACF,IAAI,MAAM,EAAE,aAAa,CAAC,IAAI,KAAK,SAAS,EAAE,CAAC;gBAC7C,MAAM,CAAC,OAAO,CACZ,qFAAqF,CACtF,CAAC;gBACF,OAAO;YACT,CAAC;YACD,MAAM,aAAa,GAAG,MAAM,IAAA,6BAAgB,GAAE,CAAC;YAC/C,IAAA,gCAAyB,EAAC,aAAa,EAAE,MAAM,CAAC,CAAC;YAEjD,MAAM,gBAAgB,GAAG,MAAM,IAAA,2CAAyB,EACtD,MAAM,EACN,aAAa,CAAC,IAAI,CACnB,CAAC;YAEF,MAAM,gBAAgB,CAAC,cAAc,CACnC,gBAAgB,EAChB,CAAC,WAAW,CAAC,EACb,WAAW,CAAC,qBAAqB,EAAE,EACnC;gBACE,wFAAwF;gBACxF,aAAa,EAAE,CAAC;aACjB,CACF,CAAC;QACJ,CAAC;IACH,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,gEAAgE;QAChE,MAAM,CAAC,OAAO,CACZ,wCAAwC,IAAA,sBAAe,EAAC,KAAK,CAAC,EAAE,CACjE,CAAC;IACJ,CAAC;AACH,CAAC;AAED,KAAK,UAAU,EAAE,CAAC"}
\ No newline at end of file
diff --git a/lib/start-proxy-action.js b/lib/start-proxy-action.js
index 0b93685362..52fbdb23b8 100644
--- a/lib/start-proxy-action.js
+++ b/lib/start-proxy-action.js
@@ -112,7 +112,8 @@ async function runWrapper() {
         ca,
     };
     // Start the Proxy
-    const proxyBin = await getProxyBinaryPath();
+    const proxyBin = actionsUtil.getOptionalInput("proxy_binary") ??
+        (await getProxyBinaryPath());
     await startProxy(proxyBin, proxyConfig, proxyLogFilePath, logger);
 }
 async function startProxy(binPath, config, logFilePath, logger) {
diff --git a/lib/start-proxy-action.js.map b/lib/start-proxy-action.js.map
index ab67cea0dc..8b6453f044 100644
--- a/lib/start-proxy-action.js.map
+++ b/lib/start-proxy-action.js.map
@@ -1 +1 @@
-{"version":3,"file":"start-proxy-action.js","sourceRoot":"","sources":["../src/start-proxy-action.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,iDAAoD;AACpD,2CAA6B;AAE7B,oDAAsC;AACtC,+DAAiD;AACjD,2CAAiC;AAEjC,4DAA8C;AAC9C,uCAAqD;AACrD,+CAA2D;AAC3D,6CAA+B;AAE/B,MAAM,eAAe,GAAG,kBAAkB,CAAC;AAC3C,MAAM,uBAAuB,GAAG,qBAAqB,CAAC;AACtD,MAAM,0BAA0B,GAC9B,kFAAkF,CAAC;AACrF,MAAM,QAAQ,GAAG,IAAI,CAAC;AACtB,MAAM,gBAAgB,GAAG,CAAC,CAAC;AAkB3B,MAAM,YAAY,GAAG;IACnB;QACE,IAAI,EAAE,YAAY;QAClB,KAAK,EAAE,wBAAwB;KAChC;IACD;QACE,IAAI,EAAE,kBAAkB;QACxB,KAAK,EAAE,aAAa;KACrB;IACD;QACE,SAAS,EAAE,IAAI;QACf,KAAK,EAAE,YAAY;KACpB;IACD;QACE,IAAI,EAAE,aAAa;QACnB,KAAK,EAAE,IAAI;KACZ;IACD;QACE,SAAS,EAAE,IAAI;QACf,KAAK,EAAE,YAAY;KACpB;IACD;QACE,IAAI,EAAE,cAAc;QACpB,KAAK,EAAE,eAAe;KACvB;CACF,CAAC;AAEF,SAAS,4BAA4B;IACnC,MAAM,IAAI,GAAG,gBAAG,CAAC,GAAG,CAAC,eAAe,CAAC,QAAQ,CAAC,CAAC;IAC/C,MAAM,IAAI,GAAG,gBAAG,CAAC,iBAAiB,EAAE,CAAC;IACrC,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,SAAS,CAAC;IAChC,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC;IACzB,IAAI,CAAC,QAAQ,CAAC,SAAS,GAAG,IAAI,IAAI,EAAE,CAAC;IACrC,IAAI,CAAC,QAAQ,CAAC,QAAQ,GAAG,IAAI,IAAI,EAAE,CAAC;IACpC,IAAI,CAAC,QAAQ,CAAC,QAAQ,CAAC,WAAW,CAChC,IAAI,CAAC,QAAQ,CAAC,SAAS,CAAC,WAAW,EAAE,GAAG,gBAAgB,CACzD,CAAC;IAEF,IAAI,CAAC,UAAU,CAAC,YAAY,CAAC,CAAC;IAC9B,IAAI,CAAC,SAAS,CAAC,YAAY,CAAC,CAAC;IAC7B,IAAI,CAAC,aAAa,CAAC,CAAC,EAAE,IAAI,EAAE,kBAAkB,EAAE,EAAE,EAAE,IAAI,EAAE,CAAC,CAAC,CAAC;IAC7D,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;IAE3B,MAAM,GAAG,GAAG,gBAAG,CAAC,gBAAgB,CAAC,IAAI,CAAC,CAAC;IACvC,MAAM,GAAG,GAAG,gBAAG,CAAC,eAAe,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;IACjD,OAAO,EAAE,IAAI,EAAE,GAAG,EAAE,GAAG,EAAE,CAAC;AAC5B,CAAC;AAED,KAAK,UAAU,UAAU;IACvB,6CAA6C;IAC7C,WAAW,CAAC,aAAa,EAAE,CAAC;IAE5B,MAAM,MAAM,GAAG,IAAA,0BAAgB,GAAE,CAAC;IAElC,8BAA8B;IAC9B,MAAM,OAAO,GAAG,WAAW,CAAC,qBAAqB,EAAE,CAAC;IACpD,MAAM,gBAAgB,GAAG,IAAI,CAAC,OAAO,CAAC,OAAO,EAAE,WAAW,CAAC,CAAC;IAC5D,IAAI,CAAC,SAAS,CAAC,gBAAgB,EAAE,gBAAgB,CAAC,CAAC;IAEnD,gCAAgC;IAChC,MAAM,WAAW,GAAG,IAAA,4BAAc,EAChC,MAAM,EACN,WAAW,CAAC,gBAAgB,CAAC,kBAAkB,CAAC,EAChD,WAAW,CAAC,gBAAgB,CAAC,wBAAwB,CAAC,EACtD,WAAW,CAAC,gBAAgB,CAAC,UAAU,CAAC,CACzC,CAAC;IAEF,IAAI,WAAW,CAAC,MAAM,KAAK,CAAC,EAAE,CAAC;QAC7B,MAAM,CAAC,IAAI,CAAC,6CAA6C,CAAC,CAAC;QAC3D,OAAO;IACT,CAAC;IAED,MAAM,CAAC,IAAI,CACT,sDAAsD,WAAW;SAC9D,GAAG,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,eAAe,CAAC,CAAC,CAAC,CAAC;SAC9B,IAAI,CAAC,IAAI,CAAC,EAAE,CAChB,CAAC;IAEF,MAAM,EAAE,GAAG,4BAA4B,EAAE,CAAC;IAE1C,MAAM,WAAW,GAAgB;QAC/B,eAAe,EAAE,WAAW;QAC5B,EAAE;KACH,CAAC;IAEF,kBAAkB;IAClB,MAAM,QAAQ,GAAG,MAAM,kBAAkB,EAAE,CAAC;IAC5C,MAAM,UAAU,CAAC,QAAQ,EAAE,WAAW,EAAE,gBAAgB,EAAE,MAAM,CAAC,CAAC;AACpE,CAAC;AAED,KAAK,UAAU,UAAU,CACvB,OAAe,EACf,MAAmB,EACnB,WAAmB,EACnB,MAAc;IAEd,MAAM,IAAI,GAAG,WAAW,CAAC;IACzB,IAAI,IAAI,GAAG,KAAK,CAAC;IACjB,IAAI,CAAC;QACH,IAAI,UAAU,GAA6B,SAAS,CAAC;QACrD,IAAI,KAAK,GAAG,CAAC,CAAC;QACd,IAAI,eAAe,GAAsB,SAAS,CAAC;QACnD,OAAO,KAAK,EAAE,GAAG,CAAC,IAAI,CAAC,UAAU,IAAI,CAAC,eAAe,EAAE,CAAC;YACtD,UAAU,GAAG,IAAA,qBAAK,EAChB,OAAO,EACP,CAAC,OAAO,EAAE,GAAG,IAAI,IAAI,IAAI,EAAE,EAAE,SAAS,EAAE,GAAG,EAAE,UAAU,EAAE,WAAW,CAAC,EACrE;gBACE,QAAQ,EAAE,IAAI;gBACd,KAAK,EAAE,CAAC,MAAM,EAAE,QAAQ,EAAE,QAAQ,CAAC;aACpC,CACF,CAAC;YACF,UAAU,CAAC,KAAK,EAAE,CAAC;YACnB,IAAI,UAAU,CAAC,GAAG,EAAE,CAAC;gBACnB,IAAI,CAAC,SAAS,CAAC,mBAAmB,EAAE,GAAG,UAAU,CAAC,GAAG,EAAE,CAAC,CAAC;YAC3D,CAAC;YACD,UAAU,CAAC,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;gBAC/B,eAAe,GAAG,KAAK,CAAC;YAC1B,CAAC,CAAC,CAAC;YACH,UAAU,CAAC,EAAE,CAAC,MAAM,EAAE,CAAC,IAAI,EAAE,EAAE;gBAC7B,IAAI,IAAI,KAAK,CAAC,EAAE,CAAC;oBACf,6FAA6F;oBAC7F,IAAI,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,MAAM,EAAE,GAAG,CAAC,KAAK,GAAG,KAAK,CAAC,GAAG,KAAK,CAAC,CAAC;oBAC3D,UAAU,GAAG,SAAS,CAAC;gBACzB,CAAC;YACH,CAAC,CAAC,CAAC;YACH,UAAU,CAAC,KAAK,EAAE,KAAK,CAAC,IAAI,CAAC,SAAS,CAAC,MAAM,CAAC,CAAC,CAAC;YAChD,UAAU,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC;YACxB,4CAA4C;YAC5C,MAAM,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC;QACzB,CAAC;QACD,IAAI,eAAe,EAAE,CAAC;YACpB,+DAA+D;YAC/D,MAAM,eAAe,CAAC;QACxB,CAAC;QACD,MAAM,CAAC,IAAI,CAAC,oBAAoB,IAAI,IAAI,IAAI,EAAE,CAAC,CAAC;QAChD,IAAI,CAAC,SAAS,CAAC,YAAY,EAAE,IAAI,CAAC,CAAC;QACnC,IAAI,CAAC,SAAS,CAAC,YAAY,EAAE,IAAI,CAAC,QAAQ,EAAE,CAAC,CAAC;QAC9C,IAAI,CAAC,SAAS,CAAC,sBAAsB,EAAE,MAAM,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;QAEvD,MAAM,aAAa,GAAG,MAAM,CAAC,eAAe;aACzC,MAAM,CAAC,CAAC,UAAU,EAAE,EAAE,CAAC,UAAU,CAAC,GAAG,KAAK,SAAS,CAAC;aACpD,GAAG,CAAC,CAAC,UAAU,EAAE,EAAE,CAAC,CAAC;YACpB,IAAI,EAAE,UAAU,CAAC,IAAI;YACrB,GAAG,EAAE,UAAU,CAAC,GAAG;SACpB,CAAC,CAAC,CAAC;QACN,IAAI,CAAC,SAAS,CAAC,YAAY,EAAE,IAAI,CAAC,SAAS,CAAC,aAAa,CAAC,CAAC,CAAC;IAC9D,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,IAAI,CAAC,SAAS,CAAC,8BAA8B,IAAI,CAAC,eAAe,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;IAC9E,CAAC;AACH,CAAC;AAED,KAAK,UAAU,kBAAkB;IAC/B,MAAM,aAAa,GACjB,OAAO,CAAC,QAAQ,KAAK,OAAO,CAAC,CAAC,CAAC,GAAG,eAAe,MAAM,CAAC,CAAC,CAAC,eAAe,CAAC;IAC5E,MAAM,QAAQ,GACZ,OAAO,CAAC,QAAQ,KAAK,OAAO;QAC1B,CAAC,CAAC,OAAO;QACT,CAAC,CAAC,OAAO,CAAC,QAAQ,KAAK,QAAQ;YAC7B,CAAC,CAAC,OAAO;YACT,CAAC,CAAC,SAAS,CAAC;IAClB,MAAM,YAAY,GAAG,GAAG,eAAe,IAAI,QAAQ,SAAS,CAAC;IAC7D,MAAM,QAAQ,GAAG,GAAG,0BAA0B,GAAG,YAAY,EAAE,CAAC;IAEhE,I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\ No newline at end of file
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\ No newline at end of file
diff --git a/src/start-proxy-action-post.ts b/src/start-proxy-action-post.ts
index 100b8a75ff..a8a8673fcb 100644
--- a/src/start-proxy-action-post.ts
+++ b/src/start-proxy-action-post.ts
@@ -22,7 +22,11 @@ async function runWrapper() {
     // Kill the running proxy
     const pid = core.getState("proxy-process-pid");
     if (pid) {
-      process.kill(Number(pid));
+      try {
+        process.kill(Number(pid));
+      } catch (error) {
+        logger.error(`Failed to kill proxy process: ${getErrorMessage(error)}`);
+      }
     }
 
     const config = await configUtils.getConfig(
diff --git a/src/start-proxy-action.ts b/src/start-proxy-action.ts
index 100e867df9..36111ddd96 100644
--- a/src/start-proxy-action.ts
+++ b/src/start-proxy-action.ts
@@ -119,7 +119,9 @@ async function runWrapper() {
   };
 
   // Start the Proxy
-  const proxyBin = await getProxyBinaryPath();
+  const proxyBin =
+    actionsUtil.getOptionalInput("proxy_binary") ??
+    (await getProxyBinaryPath());
   await startProxy(proxyBin, proxyConfig, proxyLogFilePath, logger);
 }
 
diff --git a/start-proxy/action.yml b/start-proxy/action.yml
index 14d2cd1f89..6cf221882b 100644
--- a/start-proxy/action.yml
+++ b/start-proxy/action.yml
@@ -2,6 +2,10 @@ name: "CodeQL: Start proxy"
 description: "[Experimental] Start HTTP proxy server. This action is for internal GitHub used only and will change without notice."
 author: "GitHub"
 inputs:
+  proxy_binary:
+    description: >-
+      A path for the proxy binary to use.
+    required: false
   registry_secrets:
     description: The URLs and credentials of package registries
     required: false