IDM Downloader

Use IDM (Internet Download Manager) to download large files via COM interface or command line on Windows. Recommended for large files such as datasets, videos, disk images, and archives where download resumption and acceleration are beneficial.

Quick Usage

# Download a file to specified directory
python scripts/download_idm.py <url> [output_directory] [filename]

# Download to current directory
python scripts/download_idm.py <url>

# Download with custom filename
python scripts/download_idm.py <url> <output_directory> <custom_filename>

Features

1. COM Interface (Primary): Uses IDM's COM automation (IDMan.CIDWMControl.1) for reliable downloads
2. Command Line Fallback: Uses IDMan.exe with /n flag for immediate download
3. Registry Search: Finds IDM installation from Windows Registry if not at default paths
4. Auto Filename: Extracts filename from URL if not specified

IDM Command Line

IDMan.exe parameters:

• /d - URL to download
• /p - Local directory to save file
• /f - Filename to save as
• /n - Start download immediately (no prompt)

Requirements

System Requirements

• OS: Windows (IDM is a Windows-only application)
• IDM: Internet Download Manager installed on the system

Python Dependencies

| Dependency | Purpose | Install Command |

|------------|---------|-----------------|

| Python 3.x | Runtime | - |

| pywin32 | COM interface & registry access | pip install pywin32 |

| win32com.client | IDM COM automation | (included in pywin32) |

| pythoncom | COM initialization | (included in pywin32) |

| winreg | Windows Registry access | (built-in, Windows only) |

> Note: pywin32 is optional but recommended for better compatibility and COM interface support. The script will fall back to command-line mode if not installed.

Notes

• IDM must be installed on the system
• If COM fails, automatically falls back to command line
• Downloads start immediately with /n flag