diff --git a/src/client/extension.ts b/src/client/extension.ts
index 2abbf7d8658e..a7407ac9d241 100644
--- a/src/client/extension.ts
+++ b/src/client/extension.ts
@@ -36,7 +36,7 @@ import { IAsyncDisposableRegistry, IExtensionContext } from './common/types';
 import { createDeferred } from './common/utils/async';
 import { Common } from './common/utils/localize';
 import { activateComponents } from './extensionActivation';
-import { initializeComponents, initializeGlobals } from './extensionInit';
+import { initializeCommon, initializeComponents, initializeGlobals } from './extensionInit';
 import { IServiceContainer } from './ioc/types';
 import { sendErrorTelemetry, sendStartupTelemetry } from './startupTelemetry';
 
@@ -101,6 +101,7 @@ async function activateUnsafe(
 
     const [serviceManager, serviceContainer] = initializeGlobals(context);
     activatedServiceContainer = serviceContainer;
+    initializeCommon(context, serviceManager, serviceContainer);
     initializeComponents(context, serviceManager, serviceContainer);
     const { activationPromise } = await activateComponents(context, serviceManager, serviceContainer);
 
diff --git a/src/client/extensionActivation.ts b/src/client/extensionActivation.ts
index b2c7704812c5..e0f61ae7bfca 100644
--- a/src/client/extensionActivation.ts
+++ b/src/client/extensionActivation.ts
@@ -19,7 +19,6 @@ import { traceError } from './common/logger';
 import { registerTypes as platformRegisterTypes } from './common/platform/serviceRegistry';
 import { IFileSystem } from './common/platform/types';
 import { registerTypes as processRegisterTypes } from './common/process/serviceRegistry';
-import { registerTypes as commonRegisterTypes } from './common/serviceRegistry';
 import {
     IConfigurationService,
     IDisposableRegistry,
@@ -102,7 +101,6 @@ async function activateLegacy(
     serviceManager.addSingletonInstance<OutputChannel>(IOutputChannel, jupyterOutputChannel, JUPYTER_OUTPUT_CHANNEL);
 
     // Core registrations (non-feature specific).
-    commonRegisterTypes(serviceManager);
     platformRegisterTypes(serviceManager);
     processRegisterTypes(serviceManager);
 
diff --git a/src/client/extensionInit.ts b/src/client/extensionInit.ts
index 471da8d12af8..43336cef3229 100644
--- a/src/client/extensionInit.ts
+++ b/src/client/extensionInit.ts
@@ -8,6 +8,7 @@
 import { Container } from 'inversify';
 import { Disposable, Memento } from 'vscode';
 
+import { registerTypes as commonRegisterTypes } from './common/serviceRegistry';
 import { GLOBAL_MEMENTO, IDisposableRegistry, IExtensionContext, IMemento, WORKSPACE_MEMENTO } from './common/types';
 import { ServiceContainer } from './ioc/container';
 import { ServiceManager } from './ioc/serviceManager';
@@ -35,11 +36,21 @@ export function initializeGlobals(context: IExtensionContext): [IServiceManager,
     return [serviceManager, serviceContainer];
 }
 
+export function initializeCommon(
+    _context: IExtensionContext,
+    serviceManager: IServiceManager,
+    _serviceContainer: IServiceContainer
+): void {
+    // Core registrations (non-feature specific).
+    commonRegisterTypes(serviceManager);
+
+    // We will be pulling other code over from activateLegacy().
+}
+
 export function initializeComponents(
     _context: IExtensionContext,
     serviceManager: IServiceManager,
     serviceContainer: IServiceContainer
 ) {
     activatePythonEnvironments(serviceManager, serviceContainer);
-    // We will be pulling code over from activateLegacy().
 }
diff --git a/src/client/pythonEnvironments/index.ts b/src/client/pythonEnvironments/index.ts
index d461d93ebb90..34089990d5fc 100644
--- a/src/client/pythonEnvironments/index.ts
+++ b/src/client/pythonEnvironments/index.ts
@@ -3,6 +3,7 @@
 
 import * as vscode from 'vscode';
 import { IServiceContainer, IServiceManager } from '../ioc/types';
+import { PythonEnvInfoCache } from './base/envsCache';
 import { PythonEnvInfo } from './base/info';
 import { ILocator, IPythonEnvsIterator, PythonLocatorQuery } from './base/locator';
 import { PythonEnvsChangedEvent } from './base/watcher';
@@ -50,11 +51,15 @@ export class PythonEnvironments implements ILocator {
 export function createAPI(): [PythonEnvironments, () => void] {
     const [locators, activateLocators] = initLocators();
 
+    // Update this to pass in an actual function that checks for env info completeness.
+    const envsCache = new PythonEnvInfoCache(() => true);
+
     return [
         new PythonEnvironments(locators),
         () => {
             activateLocators();
             // Any other activation needed for the API will go here later.
+            envsCache.initialize();
         },
     ];
 }