Instead of searching for a standalone download, follow these proven methods.

If you must register a DLL manually (only if you trust the source), use the command. On 64-bit systems, these files typically reside in C:\Windows\SysWOW64 for 32-bit applications or C:\Windows\System32 for 64-bit ones. Further Exploration Learn how to run the System File Checker (SFC)

There are multiple versions of Isarcextract.dll (e.g., 3.0.0.1, 5.1.0.0, 6.0.0.0). Downloading the wrong version can lead to "The procedure entry point could not be located" errors—making the problem worse.