diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6cd0d85..dd7b75f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,10 @@ on:
 
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - run: corepack enable
@@ -21,7 +24,7 @@ jobs:
       - run: pnpm install
       - run: pnpm dev:prepare
       - run: pnpm lint
-      - run: pnpm test -- --coverage
+      - run: pnpm test
       - run: pnpm build
       - run: pnpm example:build
       - run: pnpm test:types
diff --git a/example/playground/package.json b/example/playground/package.json
index 3f4e4de9..09065bfc 100644
--- a/example/playground/package.json
+++ b/example/playground/package.json
@@ -3,8 +3,8 @@
   "name": "my-module-playground",
   "scripts": {
     "test:types": "pnpm test:types:bundler && pnpm test:types:node10",
-    "test:types:bundler": "echo typescript.tsConfig.compilerOptions.moduleResolution=bundler > .nuxtrc && nuxt prepare && vue-tsc --noEmit",
-    "test:types:node10": "echo typescript.tsConfig.compilerOptions.moduleResolution=node10 > .nuxtrc && nuxt prepare && vue-tsc --noEmit"
+    "test:types:bundler": "MODULE_RESOLUTION=bundler node scripts/prepare.mjs",
+    "test:types:node10": "MODULE_RESOLUTION=node10 node scripts/prepare.mjs"
   },
   "dependencies": {
     "my-module": "workspace:*",
diff --git a/example/playground/scripts/prepare.mjs b/example/playground/scripts/prepare.mjs
new file mode 100644
index 00000000..705a2fdb
--- /dev/null
+++ b/example/playground/scripts/prepare.mjs
@@ -0,0 +1,15 @@
+import { writeFileSync } from 'node:fs'
+import { execSync } from 'node:child_process'
+
+const MODULE_RESOLUTION = process.env.MODULE_RESOLUTION
+
+if (!MODULE_RESOLUTION) {
+  throw new Error('MODULE_RESOLUTION should be defined')
+}
+
+// Write the .nuxtrc file
+writeFileSync('.nuxtrc', `typescript.tsConfig.compilerOptions.moduleResolution=${MODULE_RESOLUTION}\n`)
+
+// Run the commands
+execSync('nuxt prepare', { stdio: 'inherit' })
+execSync('vue-tsc --noEmit', { stdio: 'inherit' })
diff --git a/package.json b/package.json
index e75e48af..eeecf0e7 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "nuxt-module-build": "JITI_ESM_RESOLVE=1 jiti ./src/cli.ts",
     "prepack": "pnpm build",
     "release": "pnpm vitest run && pnpm build && changelogen --release && pnpm publish && git push --follow-tags",
-    "test": "pnpm vitest",
+    "test": "pnpm vitest --coverage",
     "test:types": "vue-tsc --noEmit && pnpm -r test:types"
   },
   "packageManager": "pnpm@9.14.2",
diff --git a/src/commands/build.ts b/src/commands/build.ts
index b3cddff7..7403a422 100644
--- a/src/commands/build.ts
+++ b/src/commands/build.ts
@@ -1,6 +1,6 @@
 import { existsSync, promises as fsp } from 'node:fs'
 import { pathToFileURL } from 'node:url'
-import { basename, dirname, join, resolve } from 'pathe'
+import { basename, dirname, join, normalize, resolve } from 'pathe'
 import { filename } from 'pathe/utils'
 import { readPackageJSON } from 'pkg-types'
 import { parse } from 'tsconfck'
@@ -74,7 +74,7 @@ export default defineCommand({
         cjsBridge: true,
       },
       externals: [
-        /dist\/runtime\//,
+        /dist[\\/]runtime[\\/]/,
         '@nuxt/schema',
         '@nuxt/schema-nightly',
         '@nuxt/schema-edge',
@@ -102,7 +102,7 @@ export default defineCommand({
           const runtimeEntries = ctx.options.entries.filter(entry => entry.builder === 'mkdist')
 
           const runtimeDirs = runtimeEntries.map(entry => basename(entry.input))
-          const RUNTIME_RE = createRegExp(anyOf(...runtimeDirs).and('/'))
+          const RUNTIME_RE = createRegExp(anyOf(...runtimeDirs).and(anyOf('/', '\\')))
 
           // Add extension for imports of runtime files in build
           options.plugins.unshift({
@@ -115,11 +115,12 @@ export default defineCommand({
               if (!resolved)
                 return
 
+              const normalizedId = normalize(resolved.id)
               for (const entry of runtimeEntries) {
-                if (!resolved.id.includes(entry.input))
+                if (!normalizedId.includes(entry.input))
                   continue
 
-                const distFile = await resolvePath(join(dirname(resolved.id.replace(entry.input, entry.outDir!)), filename(resolved.id)))
+                const distFile = await resolvePath(join(dirname(pathToFileURL(normalizedId).href.replace(entry.input, entry.outDir!)), filename(normalizedId)))
                 if (distFile) {
                   return {
                     external: true,
diff --git a/test/build.spec.ts b/test/build.spec.ts
index 1f3ec783..7f1dc24c 100644
--- a/test/build.spec.ts
+++ b/test/build.spec.ts
@@ -130,7 +130,7 @@ describe('module builder', () => {
   // TODO: https://github.com/nuxt/module-builder/issues/239
   it('should generate components correctly', async () => {
     const componentFile = await readFile(join(distDir, 'runtime/components/TestMe.vue'), 'utf-8')
-    expect(componentFile).toMatchFileSnapshot('__snapshots__/TestMe.vue')
+    expect(componentFile.replace(/\r\n/g, '\n')).toMatchFileSnapshot('__snapshots__/TestMe.vue')
   })
 
   it('should generate wrapped composables', async () => {