diff --git a/dist/setup/index.js b/dist/setup/index.js
index 24085164..a742d588 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -34480,6 +34480,9 @@ class PipCache extends cache_distributor_1.default {
             let stdout = '';
             let stderr = '';
             // Add temporary fix for Windows
+            // On windows it is necessary to execute through an exec
+            // because the getExecOutput gives a non zero code or writes to stderr for pip 22.0.2,
+            // or spawn must be started with the shell option enabled for getExecOutput
             // Related issue: https://github.com/actions/setup-python/issues/328
             if (utils_1.IS_WINDOWS) {
                 const execPromisify = util_1.default.promisify(child_process.exec);
diff --git a/src/cache-distributions/pip-cache.ts b/src/cache-distributions/pip-cache.ts
index 78ab1ebe..17055ea5 100644
--- a/src/cache-distributions/pip-cache.ts
+++ b/src/cache-distributions/pip-cache.ts
@@ -23,6 +23,9 @@ class PipCache extends CacheDistributor {
     let stderr = '';
 
     // Add temporary fix for Windows
+    // On windows it is necessary to execute through an exec
+    // because the getExecOutput gives a non zero code or writes to stderr for pip 22.0.2,
+    // or spawn must be started with the shell option enabled for getExecOutput
     // Related issue: https://github.com/actions/setup-python/issues/328
     if (IS_WINDOWS) {
       const execPromisify = utils.promisify(child_process.exec);