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Acrobat 8.x Freezes When Opening Dialog Box

If Acrobat 8.x freezes when opening any dialog box, this can be worked-around with one of the following methods:

Replacing ADMPlugin.apl

The Acrobat 8.x version of ADMPlugin.apl can be replaced with a version from Acrobat 9.x.

  1. Close Adobe Acrobat 8.x.

  2. Install Adobe Reader 9.0.

  3. Rename C:\Program Files\Adobe\Acrobat 8.0\Acrobat\SPPlugins\ADMPlugin.apl to ADMPlugin.8.

  4. Copy ADMPlugin.apl from C:\Program Files\Adobe\Reader 9.0\Reader\SPPlugins to C:\Program Files\Adobe\Acrobat 8.0\Acrobat\SPPlugins.

To perform this via the command-line:

  1. Open a command-prompt (CMD.EXE). On Windows Vista or later, open it in elevated mode.

  2. Type:

    ren "%ProgramFiles%\Adobe\Acrobat 8.0\Acrobat\SPPlugins\ADMPlugin.apl" *.8

    copy "%ProgramFiles%\Adobe\Reader 9.0\Reader\SPPlugins\ADMPlugin.apl" "%ProgramFiles%\Adobe\Acrobat 8.0\Acrobat\SPPlugins"

  3. Close the command prompt.

Once Acrobat 8.0 is working properly, Adobe Reader 9.0 may be uninstalled.

Disable Vista UAC

On Windows Vista and above, disable User Account Control (UAC) and let the user run as a full administrator.

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