diff --git a/.npmrc b/.npmrc
index 4b5e155..917e172 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1,2 +1,8 @@
 shamefully-hoist=true
 electron_mirror=https://npmmirror.com/mirrors/electron/
+# Keep the Windows x64 sherpa-onnx optional runtime available when packaging
+# Windows from macOS/Linux hosts.
+supportedArchitectures.os[]=darwin
+supportedArchitectures.os[]=win32
+supportedArchitectures.cpu[]=arm64
+supportedArchitectures.cpu[]=x64
diff --git a/src/main/index.ts b/src/main/index.ts
index c373a2b..4fd2c11 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -1117,6 +1117,7 @@ app.whenReady().then(async () => {
 
   ipcMain.handle('ai:listProviders', () => aiProviderService.list())
   ipcMain.handle('ai:getRuntimeConfig', () => aiProviderService.getRuntimeConfig())
+  ipcMain.handle('ai:getVisionRuntimeConfig', () => aiProviderService.getVisionRuntimeConfig())
   ipcMain.handle('ai:saveProvider', (_, provider: AIProviderConfig) =>
     aiProviderService.save(provider)
   )
diff --git a/src/preload/index.d.ts b/src/preload/index.d.ts
index 1b8383a..04fb13f 100644
--- a/src/preload/index.d.ts
+++ b/src/preload/index.d.ts
@@ -40,6 +40,7 @@ import type {
   AIProviderConfig,
   AIProviderListResult,
   AIRuntimeModelConfig,
+  AIVisionRuntimeConfig,
   AIVisionTestRequest,
   AIVisionTestResult,
   LegacyAIConfig
@@ -238,6 +239,7 @@ declare global {
       }>
       listAIProviders: () => Promise<AIProviderListResult>
       getAIRuntimeConfig: () => Promise<AIRuntimeModelConfig>
+      getAIVisionRuntimeConfig: () => Promise<AIVisionRuntimeConfig>
       getAiSearchProviderStatus: () => Promise<AiSearchProviderStatus>
       authorizeAiSearchExternalProvider: (
         request: AiSearchExternalAuthorizationRequest
diff --git a/src/preload/index.ts b/src/preload/index.ts
index a87b5fb..f57362b 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -124,6 +124,7 @@ const api = {
     ipcRenderer.invoke('ai:chat', messages, options),
   listAIProviders: () => ipcRenderer.invoke('ai:listProviders'),
   getAIRuntimeConfig: () => ipcRenderer.invoke('ai:getRuntimeConfig'),
+  getAIVisionRuntimeConfig: () => ipcRenderer.invoke('ai:getVisionRuntimeConfig'),
   getAiSearchProviderStatus: (): Promise<AiSearchProviderStatus> =>
     ipcRenderer.invoke('ai-search:getProviderStatus'),
   authorizeAiSearchExternalProvider: (
diff --git a/tests/integration/preload-contract.test.ts b/tests/integration/preload-contract.test.ts
index c1e9524..ddd917a 100644
--- a/tests/integration/preload-contract.test.ts
+++ b/tests/integration/preload-contract.test.ts
@@ -64,6 +64,8 @@ describe('preload IPC contract', () => {
     expect(invoke).toHaveBeenLastCalledWith('cache:clear', 'knowledge')
     await api.openKnowledgeDirectory()
     expect(invoke).toHaveBeenLastCalledWith('cache:openKnowledgeDirectory')
+    await api.getAIVisionRuntimeConfig()
+    expect(invoke).toHaveBeenLastCalledWith('ai:getVisionRuntimeConfig')
 
     await api.getImage('fixture-md5', 'fixture.dat', 'fixture-session', {
       force: true,