Acrosup64.dll Is Not Marked For Installation ^new^ ●

Encountering "Error 2753: The File 'acrosup64.dll' is not marked for installation" can be incredibly frustrating, especially when you're just trying to get your work done. This error typically pops up during an Adobe Acrobat or Reader installation or update, signaling that the Windows Installer is confused about a specific file.

If you are a CAD administrator deploying ARES or DraftSight across multiple machines, consider repackaging the MSI with the corrected attribute table via Orca or a transform (MST) file to avoid the error on every workstation.

Windows Installer uses a cached version of the MSI package. If that cache becomes corrupted or incomplete, the installer may lose track of which components should be installed, resulting in files being "not marked." acrosup64.dll is not marked for installation

Component: some-GUID has condition: NOT Installed AND (FeatureName = AcrobatMain) File: acrosup64.dll not marked for installation because condition is false

Some niche CAD tools check for region-specific DLLs. If you attempt to install a German-language edition on an English OS, or a network license version instead of a standalone version, the installer may fail to mark certain components because they are conditionally excluded by a LaunchCondition. Encountering "Error 2753: The File 'acrosup64

Do not use the old Windows Installer CleanUp Utility (unsupported). Instead, use Microsoft’s official msizap or simply reinstall.

Before we fix the problem, we need to understand the components involved. Windows Installer uses a cached version of the MSI package

Run the installation/repair with logging enabled:

Solution 1: Use the Adobe Acrobat Cleaner Tool (Recommended)