diff --git a/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec b/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec
new file mode 100755
index 0000000..5a5eced
--- /dev/null
+++ b/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
+    <metadata>
+        <id>kopano-deskapp-nightly</id>
+        <version>1.3.18</version>
+        <title>Kopano DeskApp</title>
+        <authors>Kopano</authors>
+        <owners>foo.li systeme + software</owners>
+        <licenseUrl>https://www.gnu.org/licenses/gpl.txt</licenseUrl>
+        <projectUrl>https://download.kopano.io/community/deskapp:/Windows/</projectUrl>
+        <iconUrl>https://raw.githubusercontent.com/peterbeck/chocolatey/master/icons/kopano-deskapp.png</iconUrl>
+        <requireLicenseAcceptance>true</requireLicenseAcceptance>
+        <description>From collaboration and sharing with Files or Web Meetings to the standard groupware tools; WebApp has a lot of great features to offer. Making the best use of these features would be even easier if it could be integrated with your day-to-day office applications. This is where DeskApp comes in.
+
+DeskApp is designed to be the bridge between WebApp and the desktop. DeskApp adds features a web application in a browser can’t, such as being set as the default email client, integrate with the file system to send any file as an attachment. Or even with the operating system so you can send emails from any office application.</description>
+        <summary>Kopano DeskApp</summary>
+        <releaseNotes>initial package</releaseNotes>
+        <copyright>2017 Kopano</copyright>
+        <language />
+        <tags>groupware kopano deskapp nightly</tags>
+        <dependencies>
+            <dependency id="vcredist2015" version="14.0.24215.20170201" />
+        </dependencies>
+    </metadata>
+</package>
\ No newline at end of file
diff --git a/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1 b/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1
new file mode 100755
index 0000000..546adf9
--- /dev/null
+++ b/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1
@@ -0,0 +1,35 @@
+# Kopano DeskApp
+# 2017 foo.li systeme + software
+# https://www.gnu.org/licenses/gpl.txt
+
+$packageName    = 'kopano-deskapp-nightly'
+$packageSearch  = 'Kopano DeskApp'
+$installerType  = 'msi'
+$silentArgs     = '/qb'
+$version        = '1.3.18'
+$url            = 'https://download.kopano.io/community/deskapp:/Windows/kopano-deskapp-' + $version + '-x86.msi'
+$url64          = 'https://download.kopano.io/community/deskapp:/Windows/kopano-deskapp-' + $version + '-x64.msi'
+$checksum       = '7A985E70BFA1C0E38ABAE078325AFD9F210F84D6'
+$checksumType   = 'sha1'
+$checksum64     = 'C36DDEE5B6A83490921584F8B9BD7D0866752BED'
+$checksumType64 = $checksumType
+
+
+try {   
+    $app = Get-ItemProperty -Path @('HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*',
+                                    'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*') `
+            -ErrorAction:SilentlyContinue | Where-Object { $_.DisplayName -like $packageSearch }
+
+    if ($app -and ([version]$app.DisplayVersion -ge [version]$version)) {
+        Write-Output $(
+        'Kopano DeskApp ' + $version + ' or greater is already installed. ' +
+        'No need to download and install again. Otherwise uninstall first.'
+        )
+    } else {
+        Install-ChocolateyPackage $packageName $installerType $silentArgs $url $url64 `
+                    -checksum $checksum -checksumType $checksumType `
+                    -checksum64 $checksum64 -checksumType64 $checksumType64
+    }           
+} catch {
+    throw $_.Exception
+}
\ No newline at end of file
diff --git a/packages/kopano-ol-extension-nightly/[Content_Types].xml b/packages/kopano-ol-extension-nightly/[Content_Types].xml
new file mode 100755
index 0000000..6843631
--- /dev/null
+++ b/packages/kopano-ol-extension-nightly/[Content_Types].xml
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?><Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types"><Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml" /><Default Extension="nuspec" ContentType="application/octet" /><Default Extension="ps1" ContentType="application/octet" /><Default Extension="psmdcp" ContentType="application/vnd.openxmlformats-package.core-properties+xml" /></Types>
\ No newline at end of file
diff --git a/packages/kopano-ol-extension-nightly/_rels/.rels b/packages/kopano-ol-extension-nightly/_rels/.rels
new file mode 100755
index 0000000..e461bba
--- /dev/null
+++ b/packages/kopano-ol-extension-nightly/_rels/.rels
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?><Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Type="http://schemas.microsoft.com/packaging/2010/07/manifest" Target="/kopano-ol-extension-nightly.nuspec" Id="Rdbe6e18314e141eb" /><Relationship Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="/package/services/metadata/core-properties/272377ebb6b5492483752e4d852607f4.psmdcp" Id="Re8a5ca1ca2a849d3" /></Relationships>
\ No newline at end of file
diff --git a/packages/kopano-ol-extension-nightly/kopano-ol-extension-nightly b/packages/kopano-ol-extension-nightly/kopano-ol-extension-nightly
new file mode 120000
index 0000000..cce01cb
--- /dev/null
+++ b/packages/kopano-ol-extension-nightly/kopano-ol-extension-nightly
@@ -0,0 +1 @@
+src/kopano/kopano-ol-extension-nightly
\ No newline at end of file
diff --git a/packages/kopano-ol-extension-nightly/kopano-ol-extension-nightly.nuspec b/packages/kopano-ol-extension-nightly/kopano-ol-extension-nightly.nuspec
new file mode 100755
index 0000000..b39ce17
--- /dev/null
+++ b/packages/kopano-ol-extension-nightly/kopano-ol-extension-nightly.nuspec
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
+    <metadata>
+        <id>kopano-ol-extension-nightly</id>
+        <version>1.5.214</version>
+        <title>Kopano Outlook Extension</title>
+        <authors>Kopano</authors>
+        <owners>foo.li systeme + software</owners>
+        <licenseUrl>https://www.gnu.org/licenses/gpl.txt</licenseUrl>
+        <projectUrl>https://download.kopano.io/community/olextension:/</projectUrl>
+        <iconUrl>https://raw.githubusercontent.com/peterbeck/chocolatey/master/icons/kopano-ol-extension.png</iconUrl>
+        <requireLicenseAcceptance>true</requireLicenseAcceptance>
+        <description>Kopano Outlook Extension (nightly)</description>
+        <summary>Kopano OL Extension Nightly (unsupported)</summary>
+        <releaseNotes>initial nightly packaging</releaseNotes>
+        <copyright>2017 Kopano</copyright>
+        <language />
+        <tags>groupware kopano outlook-extension nightly</tags>
+    </metadata>
+</package>
\ No newline at end of file
diff --git a/packages/kopano-ol-extension-nightly/package/services/metadata/core-properties/272377ebb6b5492483752e4d852607f4.psmdcp b/packages/kopano-ol-extension-nightly/package/services/metadata/core-properties/272377ebb6b5492483752e4d852607f4.psmdcp
new file mode 100755
index 0000000..8c0205a
--- /dev/null
+++ b/packages/kopano-ol-extension-nightly/package/services/metadata/core-properties/272377ebb6b5492483752e4d852607f4.psmdcp
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?><coreProperties xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.openxmlformats.org/package/2006/metadata/core-properties"><dc:creator>Kopano</dc:creator><dc:description>Kopano Outlook Extension (nightly)</dc:description><dc:identifier>kopano-ol-extension-nightly</dc:identifier><version>1.5.214</version><dc:language /><keywords>groupware kopano outlook-extension nightly</keywords><dc:title>Kopano Outlook Extension</dc:title><dc:subject>NuGet Package Explorer</dc:subject></coreProperties>
\ No newline at end of file
diff --git a/packages/kopano-ol-extension-nightly/tools/chocolateyinstall.ps1 b/packages/kopano-ol-extension-nightly/tools/chocolateyinstall.ps1
new file mode 100755
index 0000000..03536fc
--- /dev/null
+++ b/packages/kopano-ol-extension-nightly/tools/chocolateyinstall.ps1
@@ -0,0 +1,49 @@
+# Kopano Outlook Extension
+# 2017 foo.li systeme + software
+# https://www.gnu.org/licenses/gpl.txt
+
+$packageName    = 'kopano-ol-extension-nightly'
+$packageSearch  = 'Kopano OL Extension'
+$installerType  = 'msi'
+$silentArgs     = '/qb'
+$version        = '1.5.217'
+$intvers        = '1.5-217'
+$url            = 'https://download.kopano.io/community/olextension:/KopanoOLExtension-' + $intvers + '-32bit.msi'
+$url64          = 'https://download.kopano.io/community/olextension:/KopanoOLExtension-' + $intvers + '-64bit.msi'
+$checksum       = '66F7CD2075EC5993CABB4B903E8A9E73EE450B08'
+$checksumType   = 'sha1'
+$checksum64     = 'CF4587BEF7DC3F6E5B779467F61494C67AEF032F'
+$checksumType64 = $checksumType
+
+try {   
+    $app = Get-ItemProperty -Path @('HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*',
+                                    'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*') `
+            -ErrorAction:SilentlyContinue | Where-Object { $_.DisplayName -like $packageSearch }
+
+    if ($app -and ([version]$app.DisplayVersion -ge [version]$version)) {
+        Write-Host -ForegroundColor DarkYellow $(
+        "Kopano OL Extension " + $version + " or greater is already installed. `n" +
+        "No need to download and install again. Otherwise uninstall first."
+        )
+    } else {
+        #check for outlook
+        #https://www.reddit.com/r/PowerShell/comments/47lhdt/simple_script_to_check_if_outlook_is_installed/
+        #if (Get-ItemProperty HKLM:\SOFTWARE\Classes\Outlook.Application -ErrorAction SilentlyContinue) {
+        #    Write-Output "Outlook found"
+        #} else {
+        #    Write-Output "Outlook could not be found"
+        #    throw $_.Exception
+        #}
+        if (get-wmiobject Win32_Product |where {$_.Name -like "*Outlook*" -and $_.Version -ge "15"}) {
+            Write-Output "Outlook 2013 (or higher) seems to be present"
+            Install-ChocolateyPackage $packageName $installerType $silentArgs $url $url64 `
+                        -checksum $checksum -checksumType $checksumType `
+                        -checksum64 $checksum64 -checksumType64 $checksumType64
+        } else {
+            Write-Output "unsupported (or no) Outlook Version detected"
+            throw $_.Exception
+        }
+    }
+} catch {
+    throw $_.Exception
+}
\ No newline at end of file