As of August 2022, we no longer host drivers here. Drivers formerly hosted here have been moved to the ASCOM Ghost & Legacy Drivers repository on GitHub.

Telescope/Mount Drivers

FEATURED GS Server for Sky-Watcher and Orion Mounts
Info & DownloadThis is an ASCOM/COM server with its own graphical interface that provides an ASCOM Telescope V3 interface as well as a Synta Protocol for Sky-Watcher and Orion mounts: EQ8, EQ8-R, HDX110, AZ-EQ5GT, Sirius Pro AZ/EQ-G, AZ-EQ6GT, Orion Atlas Pro AZ/EQ-G, EQ6-R PRO, NEQ6, HEQ5, EQ5, EQ4, AzGTi. Compatible with both 32- and 64-bit ASCOM-speaking astronomy apps that need to control these mounts. Scroll down in the GS Server page to see details.
FEATURED AlpacaScope - SkyFi to Alpaca Gateway (cross-platform)
DownloadThis is a cross-platform program (Linux, Mac, and PC) that emulates Simulation Curriculum's SkyFi device to allow their SkySafari Plus and SkySafari Pro Apps to use Alpaca to talk to any ASCOM compatible telescope plugged into a Windows PC (by way of ASCOM Remote). No physical SkyFi needed. Of course AlpacaScope provides direct connections to any (future) mounts that speak Alpaca. Alpaca does not require Windows. Now at version 2.0. Here is the announcement on Cloudy Nights, and here is the ReadMe for AlpacaScope 2 on GitHub.
Ascom 2X Mount Adaptor (Paramount, etc., 6.1) for TheSky X (external link)

This is supplied by Software Bisque and is available from the Downloads section of the Software Bisque site, the file is called Ascom 2X Mount Adaptor Setup.exe

Installs a driver that connects to Software Bisque's TheSky X/6/5 Astronomy Software and makes it look like a standard ASCOM telescope. This allows ASCOM-based astronomy software to use TheSky (including TPOINT and ProTrack) as a smart telescope controller.It is required for the Paramount mounts, and may be used with TheSky controlling any other of its supported telescope types, or via its built-in outbound ASCOM support, and then using ASCOM telescope drivers. This driver provides Telescope V3 support, 100% conformance, and compatibility with TheSky X (10.2.0 or later).

Astro-Physics GTO - Factory Supplied Driver and Software
DownloadThis is the installer for the Astro-Physics factory-supported driver for all Astro-Physics telescope models. Please go to the Astro-Physics Software Updates web page for their driver and associated software.
Digital Setting Circles (David Ek, external link)
DownloadThis ASCOM driver allows the use of a variety of commercial and homebrew passive encoder-based digital setting circles systems with any Windows software that supports the ASCOM standard. This driver works with either alt-az mounts (like a dobsonian) or equatorial mounts. Equatorial mounts do not need to be accurately polar-aligned (although an accurate polar alignment will likely lead to a more satisfying observing experience). The button leads to David's web site for this driver as well as other info on DSCs.
Explore Scientific PMC-Eight Mount Controller Driver
DownloadThis is the link for the PMC-Eight Mount Controller to download the PMC-Eight Software Development Kit. This kit includes the ASCOM-Standards driver and other information needed to develop applications for the controller. This version of the driver has passed the Conformance Checker (report included in SDK). Please contact Explore Scientific for more information.
EQMOD Project (external link)
DownloadWith the EQMOD ASCOM driver, the user will be able to control the Modded EQ mount using any ASCOM based astronomy software at 0.144 arcsecond resolution. This is an ongoing project, so be sure to check the site for updates.
Gemini Telescope .NET
DownloadGemini.NET ASCOM driver supports Gemini-I Level 4, Gemini-II Level 5, and Gemini-II Level 6 (beta). Serial, USB, and Ethernet UDP communications are all supported. Developed by Paul Kanevsky and David Partridge, not affiliated with Losmandy.
Meade Autostar/Audiostar Project (October 2019)
DownloadLink to a new "Meade Generic" driver for the Meade Autostar/Audiostar controlled Meade telescopes. This driver project is listed in hopes that the author can get feedback and work out any remaining issues. This driver has been created after discovering that the "Meade LX200 Classic and Autostar #494, #495, and #497 (combined telescope/focuser, 5.0.4)" driver listed below does not implement enough features to allow the telescope to be properly operated remotely.The driver can be installed alongside any other driver (including the "universal" one listed below). See the driver project website for details.
ServoCAT (new 2022, external link)
DownloadNew (2022) driver for the StellarCAT ServoCAT telescope control system. Complete replacement for the previous Peter Eschman driver that was hosted here.Latest firmware is required
Sky Commander (2.1.0, external link)
VisitDriver for the Sky Commander digital setting circle (DSC) device. The author provides a self-contained installer.
Sky-Watcher SynScan Physical Hand Controller and SynScan App (separate drivers)
VisitThese drivers is for all mounts that use the Synta Sky-Watcher SynScan controller, including those provided by Orion etc. It should work with both AltAz and GEM mounts. The SynScan Hand Controller V3/V4 version must be 3.38 or 4.38 or later to get full functionality but limited functionality should be available for all HC versions. In addition a separate driver is available for the SynScan App, a virtual version of the Sky-Watcher SynScan hand controller.
Takahashi Temma (5.0.26, external link)
DownloadDriver for the Takahashi Temma mounts. This is a full-featured driver that provides not only ASCOM standard driver functions, but also user access to many of the Temma's special features.