Api-ms-win-core-version-l1-1-1.dll: 64 Bit

Fixing the “Api-ms-win-core-version-l1-1-1.dll is Missing” Error (64-bit)

Published: April 12, 2026 | Difficulty: Easy | Estimated Time: 5–10 minutes

folders, sweeping aside old log files and dusty drivers. It found other versions—the Api-ms-win-core-version-l1-1-1.dll 64 Bit

They are a common delivery method for malware and keyloggers. Fixing the “Api-ms-win-core-version-l1-1-1

Part 3: What Functions Does It Provide?

The version-l1-1-1 API set provides a small, focused set of functions related to retrieving file version information and operating system version details. These are the exported functions you’d expect to find (via a tool like dumpbin /exports): The version-l1-1-1 API set provides a small, focused

What is api-ms-win-core-version-l1-1-1.dll?

To understand the error, you must first understand the nature of this file. The naming convention "api-ms-win-core-" indicates that this DLL belongs to the Windows API Set—a virtualization layer introduced by Microsoft to decouple applications from specific system DLL versions.

Q: Does this affect 32-bit or 64-bit differently?

A: The error is more common on 64-bit systems because many modern 64-bit apps depend on the UCRT. However, the fix is the same: install the x64 redistributable.

The bottom line

api-ms-win-core-version-l1-1-1.dll isn’t a rogue file, a virus, or something you “lost.” It’s a modern Windows glue piece. An error mentioning it is a symptom—treat the cause (old OS, corrupted install, or broken app), not the symptom.