diff --git a/scripts/lib/native-value-e2e.mjs b/scripts/lib/native-value-e2e.mjs
index 10e226908..1249ed327 100644
--- a/scripts/lib/native-value-e2e.mjs
+++ b/scripts/lib/native-value-e2e.mjs
@@ -80,7 +80,7 @@ export async function verifyNativeValueE2e(
   const workspace = await mkdtemp(join(tmpdir(), "rea-native-values-e2e-"));
   const runtime = join(
     workspace,
-    `runtime${process.platform === "darwin" ? " with spaces" : ""}-${"x".repeat(100)}`,
+    `runtime${process.platform === "win32" ? "" : " with spaces"}-${"x".repeat(100)}`,
   );
   await mkdir(runtime);
   const env = { ...environment(), TMPDIR: runtime };
diff --git a/src/ghidra/GhidraAnalysisProfile.ts b/src/ghidra/GhidraAnalysisProfile.ts
index 1c2ec4d7f..418136f74 100644
--- a/src/ghidra/GhidraAnalysisProfile.ts
+++ b/src/ghidra/GhidraAnalysisProfile.ts
@@ -45,9 +45,9 @@ export const resolveGhidraAnalysisProfile = (
         function_references: "complete-body-and-entry-reference-manager-v2",
         location_resolution: "explicit-address-exact-name-first-v2",
         process_launch:
-          installation.platform === "darwin"
-            ? "inspected-jvm-launch-support-v1"
-            : "official-headless-script-v1",
+          installation.platform === "win32"
+            ? "official-headless-script-v1"
+            : "inspected-jvm-launch-support-v1",
         ...(dos
           ? {
               load_image_evidence: dosCom
diff --git a/src/ghidra/GhidraJavaLaunch.ts b/src/ghidra/GhidraJavaLaunch.ts
index 6f50ddf89..869574b8a 100644
--- a/src/ghidra/GhidraJavaLaunch.ts
+++ b/src/ghidra/GhidraJavaLaunch.ts
@@ -3,6 +3,7 @@ import { execFileOutput } from "../process/ExecFileOutput.js";
 
 /** Launch coordinates obtained from Ghidra's own release configuration helper. */
 export const ghidraJavaLaunch = async (options: {
+  readonly platform: NodeJS.Platform;
   readonly analyzeHeadlessPath: string;
   readonly javaHome: string;
   readonly homeRoot: string;
@@ -71,7 +72,7 @@ export const ghidraJavaLaunch = async (options: {
     environment,
     arguments: [
       ...vmArguments,
-      "-Xdock:name=Ghidra-Headless",
+      ...(options.platform === "darwin" ? ["-Xdock:name=Ghidra-Headless"] : []),
       `-Xmx${environment.GHIDRA_HEADLESS_MAXMEM || environment.GHIDRA_MAXMEM || "2G"}`,
       "-XX:ParallelGCThreads=2",
       "-XX:CICompilerCount=2",
diff --git a/src/ghidra/GhidraLauncher.ts b/src/ghidra/GhidraLauncher.ts
index f030c8559..de833d007 100644
--- a/src/ghidra/GhidraLauncher.ts
+++ b/src/ghidra/GhidraLauncher.ts
@@ -139,13 +139,14 @@ export class GhidraHeadlessLauncher implements GhidraLauncher {
         platform,
         scriptCommand.command,
       );
-      if (platform === "darwin" && this.options.javaHome === undefined)
+      if (platform !== "win32" && this.options.javaHome === undefined)
         throw new GhidraLaunchError(
-          "macOS Ghidra requires its inspected JDK home",
+          "POSIX Ghidra requires its inspected JDK home",
         );
       const command =
-        platform === "darwin" && this.options.javaHome !== undefined
+        platform !== "win32" && this.options.javaHome !== undefined
           ? await ghidraJavaLaunch({
+              platform,
               analyzeHeadlessPath: this.options.analyzeHeadlessPath,
               javaHome: this.options.javaHome,
               homeRoot: paths.homeRoot,
@@ -161,9 +162,9 @@ export class GhidraHeadlessLauncher implements GhidraLauncher {
         command: command.command,
         arguments: command.arguments,
         runId: session.runId,
-        // macOS launches the inspected JVM directly: platform shell wrappers
-        // with withheld environments cannot establish run-token ownership.
-        expectedCommand: platform === "darwin" ? command.command : null,
+        // POSIX launches the inspected JVM directly; script wrappers cannot
+        // preserve JVM property paths containing spaces as single arguments.
+        expectedCommand: platform !== "win32" ? command.command : null,
         windowsVerbatimArguments: platform === "win32",
         platform,
         env: command.environment,
@@ -441,7 +442,7 @@ const ghidraLaunchEnvironment = (
   };
 };
 
-/** Encode provider-owned JVM paths for the parser that actually consumes them. */
+/** Encode provider-owned JVM paths for the platform launcher that consumes them. */
 export const ghidraHeadlessJavaOptions = (
   homeRoot: string,
   tempRoot: string,
@@ -451,20 +452,16 @@ export const ghidraHeadlessJavaOptions = (
   "JDK_JAVA_OPTIONS" | "GHIDRA_HEADLESS_JAVA_OPTIONS"
 > => {
   const options = [`-Duser.home=${homeRoot}`, `-Djava.io.tmpdir=${tempRoot}`];
-  // analyzeHeadless.bat quotes VMARG_LIST, then launch.bat expands it again.
-  // Inner quotes fail in cmd.exe; unquoted paths with spaces split at the JVM.
-  // JDK_JAVA_OPTIONS is parsed by Java itself, outside that batch expansion.
-  return platform === "win32"
-    ? {
-        JDK_JAVA_OPTIONS: [...options, "-XX:-UsePerfData"]
-          .map(quoteWindowsBatchToken)
-          .join(" "),
-        GHIDRA_HEADLESS_JAVA_OPTIONS: "",
-      }
-    : {
-        JDK_JAVA_OPTIONS: "",
-        GHIDRA_HEADLESS_JAVA_OPTIONS: options.join(" "),
-      };
+  if (platform === "win32")
+    return {
+      JDK_JAVA_OPTIONS: [...options, "-XX:-UsePerfData"]
+        .map(quoteWindowsBatchToken)
+        .join(" "),
+      GHIDRA_HEADLESS_JAVA_OPTIONS: "",
+    };
+  // POSIX launches the JVM directly, so these properties travel as separate
+  // argv items instead of the shell-split analyzeHeadless option list.
+  return { JDK_JAVA_OPTIONS: "", GHIDRA_HEADLESS_JAVA_OPTIONS: "" };
 };
 
 const isAborted = (signal?: AbortSignal): boolean => signal?.aborted === true;
diff --git a/src/ghidra/GhidraLauncherEnvironment.test.ts b/src/ghidra/GhidraLauncherEnvironment.test.ts
index a66037515..6319d44ae 100644
--- a/src/ghidra/GhidraLauncherEnvironment.test.ts
+++ b/src/ghidra/GhidraLauncherEnvironment.test.ts
@@ -18,14 +18,13 @@ describe("Ghidra headless JVM environment", () => {
   });
 
   it.each(["linux", "darwin"] as const)(
-    "keeps the %s headless-script option list and clears inherited JDK options",
+    "passes %s isolated JVM paths through direct argv instead of script options",
     (platform) => {
       expect(
         ghidraHeadlessJavaOptions("/tmp/rea/home", "/tmp/rea/tmp", platform),
       ).toEqual({
         JDK_JAVA_OPTIONS: "",
-        GHIDRA_HEADLESS_JAVA_OPTIONS:
-          "-Duser.home=/tmp/rea/home -Djava.io.tmpdir=/tmp/rea/tmp",
+        GHIDRA_HEADLESS_JAVA_OPTIONS: "",
       });
     },
   );
diff --git a/tests/boundary/providers/ghidra/ghidraLauncher.test.ts b/tests/boundary/providers/ghidra/ghidraLauncher.test.ts
index 01b84aee6..66672324a 100644
--- a/tests/boundary/providers/ghidra/ghidraLauncher.test.ts
+++ b/tests/boundary/providers/ghidra/ghidraLauncher.test.ts
@@ -73,10 +73,8 @@ const expectIsolatedEnvironment = (
     JAVA_HOME: javaHome,
     REA_PROCESS_RUN_ID: "d6fcbb66-e829-4ff6-a535-0035aec63139",
   });
-  expect(environment.PATH).toMatch(
-    process.platform === "win32"
-      ? /^C:\\Java\\jdk-21\\bin;/u
-      : /^\/opt\/jdk-21\/bin:/u,
+  expect(environment.PATH).toBe(
+    `${join(javaHome, "bin")}${process.platform === "win32" ? ";" : ":"}${process.env.PATH ?? ""}`,
   );
 };
 
@@ -200,7 +198,9 @@ describe("Ghidra headless launcher", () => {
     ).toThrow(/metacharacters/u);
   });
 
-  it("keeps authority in a private descriptor and isolates Ghidra state", async () => {
+  it.skipIf(process.platform !== "win32")(
+    "keeps authority in a private descriptor and isolates Ghidra state through the batch launcher",
+    async () => {
     vi.stubEnv("GHIDRA_JAVA_OPTIONS", "-javaagent:/unapproved/agent.jar");
     vi.stubEnv("JAVA_TOOL_OPTIONS", "-Duser.home=/unapproved/home");
     vi.stubEnv("JDK_JAVA_OPTIONS", "-XX:MaxRAMPercentage=99");
@@ -210,13 +210,12 @@ describe("Ghidra headless launcher", () => {
     runtimes.push(runtime);
     const runtimeRoot = runtime.path;
     const token = "secret-token-that-must-not-leak";
-    const javaHome =
-      process.platform === "win32" ? "C:\\Java\\jdk-21" : "/opt/jdk-21";
+    const javaHome = "C:\\Java\\jdk-21";
     const launcher = new GhidraHeadlessLauncher({
       analyzeHeadlessPath: fixturePath,
-      // This fixture exercises the official script route. Native macOS JVM
-      // launching is covered by the real Ghidra acceptance lane.
-      platform: process.platform === "win32" ? "win32" : "linux",
+      // POSIX follows the real inspected-JVM route; Windows uses the official
+      // batch script because its launcher contract differs.
+      platform: "win32",
       javaHome,
       bridgeScriptPath: "/package/bridge/ReaGhidraBridge.java",
     });
@@ -247,9 +246,7 @@ describe("Ghidra headless launcher", () => {
     });
     expectIsolatedEnvironment(capture.environment, runtimeRoot, javaHome);
     expect(capture.environment.GHIDRA_HEADLESS_JAVA_OPTIONS).toBe(
-      process.platform === "win32"
-        ? ""
-        : `-Duser.home=${join(runtimeRoot, "home")} -Djava.io.tmpdir=${join(runtimeRoot, "tmp")}`,
+      "",
     );
     if (process.platform !== "win32")
       expect(
@@ -259,5 +256,6 @@ describe("Ghidra headless launcher", () => {
     const cleaned = await launched.value.cleanup?.();
     expect(cleaned).toMatchObject({ cleaned: true });
     await expect(access(join(runtimeRoot, "project"))).resolves.toBeUndefined();
-  });
+    },
+  );
 });