Let us start here, from square one. No, from Zero!

util/co_task_mem_ptr.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <objbase.h>
+
+#include "util/logging.h"
+
+template<typename T>
+class CoTaskMemPtr {
+public:
+    explicit CoTaskMemPtr() {
+    }
+
+    explicit CoTaskMemPtr(T *value) : _ptr(value) {
+    }
+
+    CoTaskMemPtr(const CoTaskMemPtr &) = delete;
+    CoTaskMemPtr &operator=(const CoTaskMemPtr &) = delete;
+
+    ~CoTaskMemPtr() {
+        this->drop();
+    }
+
+    void drop() const noexcept {
+        if (_ptr) {
+            log_misc("co_task_mem_ptr", "dropping {}", fmt::ptr(_ptr));
+            CoTaskMemFree(_ptr);
+        }
+    }
+
+    T *data() const noexcept {
+        return _ptr;
+    }
+
+    T **ppv() noexcept {
+        this->drop();
+
+        return &_ptr;
+    }
+
+    T *operator->() const noexcept {
+        return _ptr;
+    }
+
+private:
+    T *_ptr = nullptr;
+};