You must have the corresponding ArcGIS Desktop 10.8 or ArcGIS Engine 10.8 product installed on the machine prior to installing the SDK. Supported IDEs:

If your organization still has the original ISO files or physical media for ArcGIS Desktop 10.8, the SDK setup is often included as a separate installer within the ArcObjectsSDK folder. Key Technical Requirements for 10.8

: Go to the My Organizations tab and select Downloads .

If you have an active ArcGIS Developer subscription, certain tiers allow access to legacy SDK downloads. Log into the ArcGIS Developer dashboard, navigate to the downloads section, and filter by legacy runtime environments.

This guide provides a comprehensive overview of how to find, download, and install the ArcObjects SDK for the Microsoft .NET Framework (and Java), along with best practices for setup in 2026. What is ArcObjects SDK 10.8?

ArcObjects SDK 10.8 supports two primary platforms: and ArcObjects SDK for the Java Platform . The .NET version is the more commonly used option for Windows-based GIS development, while the Java version is tailored for Linux environments with ArcGIS Enterprise Server.

Before you install, ensure your environment matches these specific version requirements: ArcObjects SDK 10.8.x system requirements

A critical point to remember is that you cannot install the ArcObjects SDK for .NET without a prior installation of , ArcGIS Engine , or ArcGIS Server on the same machine. The SDK needs these base components to function correctly.

Scroll through the product list or use the search bar to find ArcGIS Desktop or ArcGIS Engine . Click View Downloads .