When an Inno Setup-based installer fails with a message mentioning isdone.dll, the actual underlying problems are typically:
If the above fails, the issue may be Windows 7 security settings blocking the installer. isdone.dll download windows 7 64 bit
If increasing the virtual memory did not work, you may genuinely be missing the file. Be very careful when downloading DLL files; only use reputable sources to avoid malware. When an Inno Setup-based installer fails with a
There are two locations you can try. The "System32" folder is the correct location for 64-bit files on Windows 7. Method B: The Game Installation Folder Sometimes, the
Method A: The System Directory (Recommended)
Method B: The Game Installation Folder Sometimes, the installer requires the file to be in the same folder as the setup file.
Contrary to common belief, isdone.dll is not a core Windows system file. Instead, it is a custom library used by software installers created with Inno Setup, a popular free installer for Windows programs. The DLL is typically extracted temporarily during installation and helps manage operations like file decompression, CRC checks, and completion dialogs. On a healthy Windows 7 64-bit system, this file should never need to be manually downloaded or placed into system folders. Its absence or corruption usually indicates a problem with the installer itself, not a missing system file.