ImDisk

Free plan APIWindows

What ImDisk is

ImDisk is a free virtual disk driver for Windows that creates virtual hard disk partitions, floppy drives, or CD/DVD drives from image files or system memory. It supports raw disk images and formats including VHD, VDI, VMDK, NRG, SDI, and BIN. The installer includes the imdisk.exe console program and a Control Panel applet, and adds an Explorer context-menu option to mount a file as a virtual disk. The driver can forward I/O requests to third-party image handlers or services on other computers over a network. ImDisk emulates disk volumes rather than complete disks, so mountvol and Disk Management cannot manage its drive letters or mount points, and shadow copies are not available on its drives. Physical-memory RAM disks require the separate AWEAlloc driver, which has not been included in the setup package since the May 2026 release. The maker says ImDisk receives maintenance fixes but has no new features planned and does not recommend its legacy design for recent Windows versions. The installer works on 32-bit and 64-bit Windows, but signing does not guarantee compatibility with every Windows version or security configuration.

Who it suits

ImDisk may suit Windows users who need to mount supported disk-image formats as virtual volumes. Its legacy design and stated compatibility limits are important considerations for users of recent Windows versions.

What it does well

Free to download and use
Supports raw, VHD, VDI, VMDK, NRG, SDI, and BIN images
Includes console and Control Panel controls
Can forward I/O requests over a network
Source code is available on GitHub

What to know first

No new features are planned
Maker does not recommend its legacy design for recent Windows
RAM disks need a separate AWEAlloc driver
Shadow copies are unavailable on its drives

Limits

ImDisk emulates volumes rather than complete disks, so mountvol and Disk Management cannot manage its drive letters or mount points, and shadow copies are unavailable on its drives. Physical-memory RAM disks require the separate AWEAlloc driver, which is not included in the setup package.

Plans

Plan	Billed and limits	Price
ImDisk Virtual Disk Driver	Free to download and use · voluntary usage fee welcome · alternative commercial licensing available on request	Free

As ltr-data.se lists them, read 2 Oct 2026. The maker's own page has the final word.

Getting started

Open the ImDisk website and locate the current installer.
Choose and install the package for your Windows system.
Use the Explorer context-menu option to mount an image file, or open the console control program or Control Panel applet.
For application use, access the API functions from a C/C++, COM, or .NET client.

Verdict

ImDisk provides virtual volumes and image mounting on Windows, with several control options and network I/O forwarding. Its maker warns that the legacy design is not recommended for recent Windows versions, and physical-memory RAM disks need a separate driver.

Questions

Does ImDisk cost anything?

The ImDisk Virtual Disk Driver is free to download and use at 0.00 USD. Voluntary usage fees are welcome, and alternative commercial licensing is available on request.

Which systems does ImDisk support?

The current installer works on 32-bit and 64-bit Windows. Listed CPU architectures include x86, ia64, x64, arm32, and arm64.

Which image formats can ImDisk mount?

Supported formats include raw disk images, VHD, VDI, VMDK, NRG, SDI, and BIN.

Can ImDisk create RAM disks?

Physical-memory RAM disks use the separate AWEAlloc driver, which has not been included in the ImDisk setup package since the May 2026 release.

Is ImDisk open source?

Its source code is available on GitHub. ImDisk includes GPL-licensed floppy-emulation code; alternative commercial licensing for a version without that code is available on request.

Is ImDisk still receiving development?

The maintainer says it receives maintenance fixes, but no new features are planned and its legacy design is not recommended for recent Windows versions.

Facts from ImDisk's own pages

APIs: API functions are available to C/C++, COM, and .NET clients, with wrapper libraries published on NuGet. · ltr-data.se, 2 Oct 2026
Compatibility limit: ImDisk emulates disk volumes rather than complete disks, so it does not support managing its drive letters or mount points through mountvol or Disk Management, and shadow copies cannot be created or accessed on its drives. · ltr-data.se, 2 Oct 2026
Controls: The installer includes the imdisk.exe console control program and a Control Panel applet, and adds an Explorer context-menu item for mounting a file as a virtual disk. · ltr-data.se, 2 Oct 2026
Driver signing: The driver files are digitally signed with a certificate trusted by Microsoft, though the maker notes that signing does not ensure compatibility with every Windows version or security configuration. · ltr-data.se, 2 Oct 2026
Maintenance: The maker says ImDisk receives maintenance fixes but has no new features planned and does not recommend its legacy design for recent Windows versions. · ltr-data.se, 2 Oct 2026
Privacy and safety: The maker says its software has no hidden usage or private-information reporting and does not make hidden system changes without the user requesting them. · ltr-data.se, 2 Oct 2026
Purpose: ImDisk is a virtual disk driver for Windows that creates virtual hard disk partitions, floppy drives, or CD/DVD drives using image files or system memory. · ltr-data.se, 2 Oct 2026
RAM disks: Physical-memory RAM disks use the separate AWEAlloc driver, which has not been included in the ImDisk setup package since the May 2026 release. · ltr-data.se, 2 Oct 2026
Remote I/O: The driver can forward I/O requests to third-party image format handlers or services on other computers over a network. · ltr-data.se, 2 Oct 2026
Source and license: The source code is available on GitHub; ImDisk includes GPL-licensed floppy-emulation code, and alternative commercial licensing for a version without that code is available on request. · ltr-data.se, 2 Oct 2026
Support: The maintainer offers contact by email, phone, Signal, or WhatsApp and says he speaks Swedish and English. · ltr-data.se, 2 Oct 2026
Supported systems: The current installer works on 32-bit and 64-bit Windows; listed CPU architectures include x86, ia64, x64, arm32, and arm64. · ltr-data.se, 2 Oct 2026

Where ImDisk stands on Freedom251

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