Yes. You can extract the DLL from the Inno Setup Portable version, available on PortableApps.com.

Before attempting to download the DLL file from the internet (which is risky), try these standard fixes.

Even after downloading and placing the file, you may encounter issues. Here are the most common solutions.

| Error Message | Likely Cause | Solution | |---------------|--------------|----------| | "Isarcextract.dll is either not designed to run on Windows" | Architecture mismatch (64-bit vs 32-bit) | Place the 32-bit DLL in SysWOW64, not System32. | | "The module was loaded but the entry-point DllRegisterServer was not found" | This DLL may not be self-registerable | Ignore – it’s not required for all apps. Just place it in the app folder. | | "Access is denied" during registration | Permissions issue | Run Command Prompt as Administrator. | | "Isarcextract.dll not found after placing it" | Path not in system PATH or wrong folder | Copy DLL to the exact app folder, or add its path to the system PATH variable. |

No — downloading DLLs from random third‑party sites is risky. Files from untrusted sources can be modified to include malware, and mismatched DLL versions can cause stability or compatibility problems. Prefer official sources and the guidance below.