Get-Item Registry::HKEY_CLASSES_ROOT\* | Select-Object "Property","PSChildName" | Where-Object -Property Property -Match "^URL*" | Export-Csv -path c:\temp\url_all.csv

handlers

bingmaps
calculator
callto
conf
DLNA-PLAYSINGLE
Explorer.AssocActionId.BurnSelection
Explorer.AssocActionId.EraseDisc
Explorer.AssocActionId.ZipSelection
Explorer.AssocProtocol.search-ms
Explorer.BurnSelection
Explorer.EraseDisc
Explorer.ZipSelection
feed
feeds
file
FirefoxURL-308046B0AF4A39CB
ftp
grvopen
http
https
iehistory
ierss
im
LDAP
Lync15
Lync15classic
ma-chan
ma-filelink
mailto
mapi
mapi15
mapi16
mk
MMS
ms-access
ms-actioncenter
ms-apprep
ms-availablenetworks
ms-cortana
ms-cxh
ms-device-enrollment
ms-excel
ms-msdt
ms-penworkspace
ms-powerpoint
ms-publisher
ms-settings
ms-settings-airplanemode
ms-settings-bluetooth
ms-settings-cellular
ms-settings-connectabledevices
ms-settings-displays-topology
ms-settings-emailandaccounts
ms-settings-language
ms-settings-location
ms-settings-lock
ms-settings-mobilehotspot
ms-settings-notifications
ms-settings-power
ms-settings-privacy
ms-settings-proximity
ms-settings-screenrotation
ms-settings-wifi
ms-settings-workplace
ms-teams
ms-windows-search
ms-word
mssharepointclient
msteams
mswindowsmusic
mswindowsvideo
odopen
OneIndex16
OneNote
OneNote.URL.16
OneNoteDesktop
OneNoteDesktop.URL.16
Outlook.URL.feed.15
Outlook.URL.mailto.15
Outlook.URL.stssync.15
Outlook.URL.webcal.15
res
rlogin
search
search-ms
sip
sips
skypecast15
stssync
tbauth
tel
telnet
tn3270
webcal
webcals
windows.tbauth
WMP11.AssocProtocol.DLNA-PLAYSINGLE
WMP11.AssocProtocol.MMS
Word
xbox-tcui
appinstaller.oauth2
bingnews
bingweather
feedback-hub
git-client
IE.HTTP
insiderhub
microsoft-edge
microsoft-edge-holographic
microsoft.windows.camera
microsoft.windows.camera.multipicker
microsoft.windows.camera.picker
microsoft.windows.photos.crop
microsoft.windows.photos.picker
microsoft.windows.photos.videoedit
Microsoft.Workfolders
microsoftvideo
ms-aad-brokerplugin
ms-appinstaller
ms-calculator
ms-clock
ms-contact-support
ms-cortana2
ms-cxh-full
ms-default-location
ms-device-enrollment2
ms-drive-to
ms-edu-secureassessment
ms-eyecontrolspeech
ms-gamebar
ms-gamebarservices
ms-gamingoverlay
ms-get-started
ms-getoffice
ms-inputapp
ms-insights
ms-meetnow
ms-meetnowflyout
ms-mmsys
ms-msime-imepad
ms-msime-imjpdct
ms-officeapp
ms-officecmd
ms-oobenetwork
ms-people
ms-perception-simulation
ms-phone
ms-photos
ms-powerautomate
ms-print-addprinter
ms-print-printjobs
ms-quick-assist
ms-rdx-document
ms-retaildemo-launchbioenrollment
ms-retaildemo-launchstart
ms-screenclip
ms-screensketch
ms-search
ms-sttoverlay
ms-taskswitcher
ms-to-do
ms-todo
ms-unistore-email
ms-virtualtouchpad
ms-walk-to
ms-wcrv
ms-windows-store
ms-windows-store-deskext
ms-windows-store2
ms-wpc
ms-wpdrmv
ms-wxh
ms-xbet-survey
ms-xbl-3d8b930f
ms-xgpueject
msgamepass
msgamingapp
msnews
msnnews
msnweather
msxbox
outlookaccounts
outlookcal
outlookmail
read
vscode
vsls
vstfs
vsweb
windows-feedback
windowsdefender
xboxliveapp-1297287741
zune