All Knowledgebase Articles

A complete list of every article in the Rhino knowledgebase.

• "Application Has Failed to Start" Error

  Solving the "Application has failed to start..." error.

• "CD Key Addition Request Denied by the Server" Error

  Solving the "CD Key addition request denied by the server..." error.

• "Failed to Write to Client Mailslot" Error

  Solving the "Failed to write to client mailslot..." error.

• "License of Rhinoceros Is Already in Use" Warning

  Solving the "License of Rhinoceros is already in use..." warning.

• "Server Mailslot Not Created" Error

  Solving the "Server mailslot not created..." error.

• "Side-by-Side Information Is Incorrect" Error

  Solving the "Side-by-side information is incorrect" error.

• "Unable to Open the Service" Error

  Solving the "Unable to open the service" error.

• Advanced Troubleshooting for License Manager Errors (Rhino 3 and 4)

  In-depth troubleshooting for the Rhino 3 and 4 'Unable to communicate with license manager' error, covering missing files, registry issues, and conflicting security software.

• Blank LAN Zoo Admin Dialog

  Why the LAN Zoo Admin dialog can appear blank on headless computers, and how to work around it.

• Cannot Find Zoo Server After IP Address Change

  Solving a Zoo connection problem after an IP address change.

• Changing a Rhino 5 for Mac License Key

  How to replace a Rhino 5 for Mac evaluation license with a permanent one, or correct a license key that was entered incorrectly.

• Changing the IP Address of a LAN Zoo Server

  What happens when you change the IP address of a LAN Zoo server.

• Checking Out Licenses from the Zoo

  Solving the "cannot check out license..." error.

• Designing Jewelry for Manufacturing with Rhino 6

  Recorded webinar: jeweler Gary Dawson models a ring in Rhino 6 for Windows, showing how to keep manufacturability in mind from the first curve onward.

• Digital Patterning with ExactFlat and Rhino

  Recorded webinar: Mark Jewell and Luke Niwranski of ExactFlat demonstrate digital patterning and the ExactFlat plugin for flattening 3-D models into 2-D cut designs in Rhino.

• Does Rhino Support VDI?

  Which VDI (Virtual Desktop Infrastructure) platforms Rhino has been used on and what to expect for licensing and graphics performance.

• Getting Started Videos

  Recorded Getting Started presentations for Rhino 5 through Rhino 8, Windows and Mac, hosted on Vimeo.

• GHowl Google Earth Tutorial

  Tutorial: bring Google Earth terrain into Grasshopper with GHowl, then texture and render the mesh with Flamingo nXt.

• Handheld Scanning to Rhino: LIVE Webinar

  Recorded webinar: DotProduct, Rhino and Sea Machines demonstrate handheld 3D scanning with the DPI-8 kit, importing .DP point cloud data directly into Rhino for autonomous boat design.

• How Can I Find My Zoo Servers?

  Solving the "Where are my Zoo servers?" question.

• How Often Does the LAN Zoo Check for a Rhino Key?

  How often does the LAN Zoo check for a Rhino key?

• How Rhino 5 for Windows Finds the LAN Zoo

  Where Rhino 5 for Windows looks for the name of its LAN Zoo server: the Windows Registry, then DNS.

• I Cannot Find My Rhino License Key

  What to do if you cannot locate your Rhino license key, including where older license keys were shipped and what replacement options exist.

• Installing Rhino 5 for Mac

  Step-by-step instructions for installing Rhino 5 for Mac: getting an evaluation key, downloading the disk image, and validating a license key.

• Installing Rhino in Multiple Locations

  What the Rhino license agreement says about running Rhino on more than one computer, and how to share licenses.

• Installing the LAN Zoo on an Alternate Drive

  How to install the LAN Zoo on a drive other than the default.

• LAN Zoo for macOS

  Whether the LAN Zoo runs on macOS, and how to host it on a Mac.

• LAN Zoo License Validation: Return Validations

  What to do when returning a license validation from the LAN Zoo fails.

• Mailslot Defined

  All about mailslots.

• Manually Removing a Rhino License

  How to manually delete the Rhino license file on Windows and macOS, as a last resort when a license cannot be removed the normal way.

• McNeel Training Overview

  Overview of McNeel's Rhino training options, class formats, and how to prepare for a class.

• Moving a Zoo Server

  How to move the Zoo server software from one server to another.

• Multiple Network Card Issue

  Solving a Zoo connection problem on a laptop with more than one network connection.

• Multiple Retries Required to Get a License from the Zoo

  Why a Rhino system might need to retry several times to get a license from a Zoo server.

• Multiple Rhino Sessions and Licensing

  How multiple sessions of Rhino are licensed by the Zoo.

• Redundant Zoo Servers

  A common question regarding redundant Zoo servers.

• Registry Key Lookup on Windows x64

  Tip for solving registry key lookup issues on x64 versions of Windows.

• Rendering Architecture in Rhino

  Tutorials for photo-realistic architectural rendering in Rhino with V-Ray, covering exteriors, interiors, and post-processing.

• Resolving "Unable to Communicate with License Manager" Errors

  Fixes for the Rhino 3 or 4 'Unable to communicate with license manager' error, including reinstalling the license manager and repairing Rhino 4.

• Rhino 4.0 Client Does Not Run

  What can happen if you delete the Rhino.key file.

• Rhino 5 License Validation

  How Rhino 5 license validation works, including upgrading from a previous version, validating offline, and installing Rhino for disk imaging.

• Rhino 5 Validation Fails Even After Reset

  How to delete the Rhino 5 license (.lic) file when validation keeps failing, even after McNeel Sales has reset the license.

• Rhino 5: Error "_mcneel._zoo5"

  How to fix a damaged Rhino 5 license file that shows an error mentioning '_mcneel._zoo5' the first time Rhino 5 runs after installation.

• Rhino 5: Error "Rhino is Unable to Connect to ZooClient.dll"

  How to fix the Rhino 5 for Windows error 'Rhino is unable to connect to ZooClient.dll', most often seen on Rhino 5 64-bit under Windows 8.

• Rhino 5: License Manager Initialization Failed with Error -200 or -300

  How to fix the Rhino 5 'License manager initialization failed with error -200 or -300' message by reinstalling the Rhino 5 program components.

• Rhino 8 Uses the .NET Runtime

  Why Rhino 8 can fail to connect to the LAN Zoo when the .NET runtime it needs is missing, and how to fix it.

• Rhino in Architecture

  Guides for using Rhino in the building industry: BIM interoperability, computational design, environmental analysis, visualization, fabrication, and recommended reading.

• Rhino Labs Tools

  Index of the experimental Rhino 5 Labs plugins from McNeel, with downloads and descriptions.

• Rhino Live

  Recordings of past Rhino Live webinars covering modeling, rendering, layouts, and licensing.

• Rhino to Google Earth

  Export Rhino models to Google Earth as KML or KMZ, and set the earth anchor point for precise geographic placement.

• Rhino Training Videos

  Free recordings of the Rhino for Windows Level 1 and Level 2 instructor-led training classes.

• Rhino Tutorial Links

  Links to Rhino tutorials on other web sites, covering architecture, automotive styling, marine design and Google Earth integration.

• Rhino V3 Asks for a Hardware Lock

  Why Rhino V3 asks for a hardware lock when installed on a computer running Windows in an Asian language, and how to avoid it.

• Student Stories

  How the Queen's Solar Vehicle Team at Queen's University uses Rhino to design and build their solar car.

• Switch Rhino to Workgroup Node

  How to switch Rhino from standalone node to workgroup node.

• The Morpheus Hotel: From Design to Production

  Recorded webinar: Zaha Hadid Architects and Front Inc. on the computational design, analysis, fabrication and construction of the Morpheus Hotel facade in Macau.

• Ultimaker Educator Workshop with Rhinoceros

  Three-day Rhino training led by Mary Fugier at NYU Tandon's Makerspace in Brooklyn, August 2017, with an Ultimaker 3D printing bootcamp. Includes the full course outline and expected outcomes.

• Using NETSH to Open TCP and UDP Ports

  Using NETSH to open Zoo 4.0 required TCP and UDP ports.

• Using the Zoo Across a Microsoft VPN

  Using the Zoo across a Microsoft VPN.

• Video: Visualizing Mathematics in Rhinoceros

  Recorded webinar: mathematician Henry Segerman on 3D printed mathematical art, hyperbolic honeycombs and torus knots, plus a workshop building a stereographic projection shadow sculpture in Rhino.

• Why Is There No MSI Installer for Rhino?

  Why Rhino 6 and later ship a single EXE installer instead of an MSI, and what that means for SCCM/Intune deployment.

• Windows Security Settings and License Validation

  How a Windows security setting can stop the LAN Zoo from validating licenses, and how to fix it.

• Zoo 4.0: License Manager

  Zoo 4.0 legacy documentation. Zoo 4.0 is no longer supported.

• Zoo Installation and Configuration

  Tips for installing the Zoo Workgroup License Manager.

• Zoo Returning Expired Licenses

  Solving the "This license of Rhino is expired" problem.

• Zoo Server Running Slow

  Tip for solving a slow-running Zoo server.

• Zoo Service Shuts Down After Starting

  Enabling multiple Zoo server support.

• Zoo Troubleshooting

  Tips for solving problems related to the Zoo Workgroup License Manager.