Install DVDAddin

1. Download the installer

Download setup.exe (24 MB) from the official release page:

→ https://dvdpm.net/dvdaddin/download

Or directly from GitHub Releases:

→ https://github.com/dangdvd/DVDAddin/releases/latest

2. Close Excel before installing

⚠️ Important

Close all Excel windows before running setup.exe. If Excel is open, the installer will warn and stop — you must close Excel before continuing.

Reason: the installer needs to update the .xll file currently loaded by Excel. If the file is locked by a running Excel process, MSI will require a system restart.

3. Run setup.exe

Double-click setup.exe → installer wizard appears.

If your machine doesn't have .NET 8

Setup will auto-detect whether your Excel is 32-bit or 64-bit, then download the matching .NET 8 Desktop Runtime from Microsoft CDN:

• Excel 64-bit → downloads windowsdesktop-runtime-8.0.11-win-x64.exe (~55 MB)
• Excel 32-bit → downloads windowsdesktop-runtime-8.0.11-win-x86.exe (~50 MB)

After downloading, .NET 8 installs silently — no intervention needed.

If your machine already has .NET 8

Setup detects existing .NET 8 → skips runtime download, proceeds directly to install DVDAddin.

4. Upgrade from older version

If your machine has an older DVDAddin (2.7.6, 2.7.5, ...), setup.exe 2.7.7 will automatically uninstall the old version and install over (Major Upgrade) — you do NOT need to manually uninstall.

Notes:

• Your settings (API keys, Preferences, Translate language) are preserved in registry HKCU\Software\DVD\DVDAddin\*.
• Workbooks using the addin are unaffected.

5. Open Excel and verify

After installation, open Excel — you'll see 2 new tabs on the Ribbon:

• DVD Addin — general commands (text, numbers, files, print, translate, AI).
• DVD Cons — construction-specific commands (Gantt, rebar cutting, BoQ).

If you DON'T see these 2 tabs, see Troubleshooting below.

6. Activate license

On first Excel open, the addin runs in 30-day free trial mode. To unlock all features, activate a license:

→ Activate license guide

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Troubleshooting

Error: "It was not possible to find a compatible framework version for .NET Desktop Runtime"

This means .NET 8 is not installed for the right Excel bitness. Fix:

1. Go to Settings → Apps → Apps installed (Windows 10/11).
2. Find "Microsoft Windows Desktop Runtime - 8.0.x".
3. If Excel is 64-bit but only (x86) is installed → install x64 too.
4. If Excel is 32-bit but only (x64) is installed → install x86 too.

Direct .NET 8 download from Microsoft:

• x64: https://builds.dotnet.microsoft.com/dotnet/WindowsDesktop/8.0.11/windowsdesktop-runtime-8.0.11-win-x64.exe
• x86: https://builds.dotnet.microsoft.com/dotnet/WindowsDesktop/8.0.11/windowsdesktop-runtime-8.0.11-win-x86.exe

"DVD Addin" / "DVD Cons" tabs missing from Ribbon

1. Open Excel → File → Options → Add-ins.
2. At the bottom, Manage: dropdown → pick Excel Add-ins → click Go.
3. In the list, ensure DVDAddin-AddIn.xll (or DVDAddin-AddIn64.xll) is ticked.
4. If visible but not ticked → tick it → OK.
5. If NOT in the list → click Browse... → find the .xll at:
   • 64-bit Excel: C:\DVDAddin\DVDAddin-AddIn64-packed.xll
   • 32-bit Excel: C:\DVDAddin\DVDAddin-AddIn-packed.xll

Tabs appear but buttons are grayed out

Common cause: no workbook is open. Create a new workbook → buttons will enable.

If still grayed after opening a workbook: license expired or revoked. See Activate license.

Other installation errors

Send the verbose MSI log at %TEMP%\MSI*.log to [email protected] for support.

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→ Next step: Activate license