Welcome to the Longbow Software Blog. Find step-by-step installation and troubleshooting guides for AutoCAD, Adobe products, and other legacy software on Windows 11, Windows 10, and earlier versions of Windows.
Use the search box in the left sidebar to enter your product, release, and Windows version. Try AutoCAD R14 Windows 11 or Acrobat XI Windows 11. If you’re troubleshooting, search for the exact error message.
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Autodesk
AutoCAD Architecture / ADT
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AutoCAD Map 3D
AutoCAD Mechanical
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Mechanical Desktop
CAD, engineering and design
Graphics, publishing and scanning
Adobe Acrobat
Adobe Illustrator
Adobe Photoshop
The Print Shop
Ulead PhotoImpact
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Windows, support and developer tools
Longbow Software
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AutoCAD and Autodesk
Find release-specific guides for AutoCAD, AutoCAD LT, Architecture, Mechanical Desktop, Civil 3D, Land Desktop, and Inventor.
Other CAD and engineering
Find installation and compatibility help for Rhino, BobCAD-CAM, OrCAD, and Mathcad.
Adobe, graphics and publishing
Install and troubleshoot older versions of Acrobat, Photoshop, Illustrator, Corel Print House, and The Print Shop.
Office, business and scanning
Find setup instructions for Microsoft Office, QuickBooks, ACT!, PaperPort, OmniPage, and other Windows applications.
Setup errors and compatibility
Work through installer errors, 32-bit compatibility problems, startup crashes, and other issues with older software.
Longbow Software product help
See setup instructions and feature guides for Longbow Converter, Longbow Reviver, and Longbow Previewer.