Downloads of v 2.11.2:


Last Update:

14 May 2021

Package Maintainer(s):

Software Author(s):

  • Claudio Nicora


virtualmidisynth MIDI synthetizer


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2.11.2 | Updated: 14 May 2021



Downloads of v 2.11.2:



Software Author(s):

  • Claudio Nicora

  • 1
  • 2
  • 3
VirtualMIDISynth 2.11.2

  • 1
  • 2
  • 3

Some Checks Have Failed or Are Not Yet Complete

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Passed


Scan Testing Resulted in Flagged as a Note:

At least one file within this package has greater than 0 detections, but less than 5


To install VirtualMIDISynth, run the following command from the command line or from PowerShell:


To upgrade VirtualMIDISynth, run the following command from the command line or from PowerShell:


To uninstall VirtualMIDISynth, run the following command from the command line or from PowerShell:


NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Enter your internal repository url

(this should look similar to

4. Choose your deployment method:

choco upgrade virtualmidisynth -y --source="'STEP 3 URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade virtualmidisynth -y --source="'STEP 3 URL'"

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Ensure virtualmidisynth installed
    name: virtualmidisynth
    state: present
    version: 2.11.2
    source: STEP 3 URL

See docs at

chocolatey_package 'virtualmidisynth' do
  action    :install
  version  '2.11.2'
  source   'STEP 3 URL'

See docs at

    Name: virtualmidisynth,
    Version: 2.11.2,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller virtualmidisynth
   Name     = 'virtualmidisynth'
   Ensure   = 'Present'
   Version  = '2.11.2'
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'virtualmidisynth':
  provider => 'chocolatey',
  ensure   => '2.11.2',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install virtualmidisynth version="2.11.2" source="STEP 3 URL"

See docs at

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

This package was approved as a trusted package on 14 May 2021.


VirtualMIDISynth is a software MIDI synthesizer implemented as a Windows multimedia user driver, accessible as a standard MIDI Out device.

It works on Windows XP (SP3) / Vista (SP1) / 7 (SP1) / 8.x / 10 (both x86 and x64), and is based on the great BASS library from un4seen.

Main features

  • User mode multimedia driver, no reboots, no BSOD
  • Directly accessible as MIDI Out device, no need for virtual MIDI cables (like MIDI Yoke, LoopBe1)
  • Supports up to 4 virtual devices, each with its own soundfont configuration (new in version 2.x)
  • Virtually unlimited polyphony (limited only by available CPU power)
  • MIDI mixer to set track mute/volume, accessible through systray icon
  • Integrated MIDI converter to easily convert your MIDI files to WAV/MP3/FLAC
  • Lightweight setup (~1.2 MBytes)
  • No DLL cluttering, everything is self contained installation folder (except for MIDI device driver) (new in version 2.x)
  • Clean installer, won't affect other MIDI devices
  • Efficient RAM usage (allows using large SoundFonts, > 1GByte)
  • Load soundFonts (up to available memory), enable/disable/chain them at your will; native 64bit version (on x64 OS) is not limited to 4GByte (new in version 2.x)
  • Configure MIDI Mapper default device (this feature is already available in XP, but missing in Vista / Windows 7)
  • Windows 8/10 users can also install CoolSoft MIDIMapper and configure it straight from VirtualMIDISynth configurator to get the well-known MIDI Mapper back to their systems
  • Multilanguage dialogs.
    If you want to help in translation, see here for status then get in touch to have access to the online translation system.

Take a look at the TODO list of what features you'll find in next versions or propose your ideas.





VirtualMIDISynth is freeware, use it as you like.
Donations < are welcome>, especially if you earn money with it (live performances, public karaoke sessions, ...).
Verification is intended to assist the Chocolatey moderators and community
in verifying that this package's contents are trustworthy.
Package can be verified like this:
1. Download:
2. You can use one of the following methods to obtain the SHA256 checksum:
   - Use powershell function 'Get-FileHash'
   - Use Chocolatey utility 'checksum.exe'
   checksum type: sha256
   checksum32: E85583C4F91960D9511417F2D6C9AD4E9578D500A7ACF3AD3E1AA6EFA5DF728F
   checksum64: E85583C4F91960D9511417F2D6C9AD4E9578D500A7ACF3AD3E1AA6EFA5DF728F
File 'LICENSE.txt' is obtained from:
$ErrorActionPreference = 'Stop';
$toolsDir = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"

$packageArgs = @{
  packageName = $env:ChocolateyPackageName
  file        = "$toolsDir\CoolSoft_VirtualMIDISynth_2.11.2.exe"
  silentArgs  = '/S'

Install-ChocolateyInstallPackage @packageArgs
$ErrorActionPreference = 'Stop';

$packageArgs = @{
  packageName   = $env:ChocolateyPackageName
  softwareName  = 'CoolSoft VirtualMIDISynth *'
  fileType      = 'exe'
  silentArgs    = '/S'

$uninstalled = $false
[array]$key = Get-UninstallRegistryKey -SoftwareName $packageArgs['softwareName']

if ($key.Count -eq 1) {
  $key | % {
    $packageArgs['file'] = "$($_.UninstallString)"
    Uninstall-ChocolateyPackage @packageArgs
} elseif ($key.Count -eq 0) {
  Write-Warning "$packageName has already been uninstalled by other means."
} elseif ($key.Count -gt 1) {
  Write-Warning "$($key.Count) matches found!"
  Write-Warning "To prevent accidental data loss, no programs will be uninstalled."
  Write-Warning "Please alert package maintainer the following keys were matched:"
  $key | % {Write-Warning "- $($_.DisplayName)"}
md5: 436E17EE6F54932AE141114967888593 | sha1: F9EA431CC68B527C18291C551047CB9F8AC4DB03 | sha256: E85583C4F91960D9511417F2D6C9AD4E9578D500A7ACF3AD3E1AA6EFA5DF728F | sha512: 65B9E3B54388DBC6C0C6BB50FEC94F104C567DB3F1361F4B12BF88C32A98100BD88786BE3E2CCAD8B60BE02361DAFF3E927288E2CD6606C8BDDF735FF673EF7B

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Version Downloads Last Updated Status
VirtualMIDISynth 2.11.1 122 Thursday, March 25, 2021 Approved
VirtualMIDISynth 2.11.0 191 Sunday, January 17, 2021 Approved
VirtualMIDISynth 2.10.2 119 Tuesday, December 15, 2020 Approved
VirtualMIDISynth 2.10.1 190 Monday, September 7, 2020 Approved
VirtualMIDISynth 2.10.0 58 Sunday, August 30, 2020 Approved
VirtualMIDISynth 2.9.3 128 Saturday, July 18, 2020 Approved
VirtualMIDISynth 2.9.2 82 Wednesday, July 8, 2020 Approved
VirtualMIDISynth 2.9.1 167 Sunday, April 26, 2020 Approved
VirtualMIDISynth 2.9.0 60 Monday, April 20, 2020 Approved

This package has no dependencies.

Discussion for the VirtualMIDISynth Package

Ground Rules:

  • This discussion is only about VirtualMIDISynth and the VirtualMIDISynth package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or VirtualMIDISynth, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
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