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After installation of Power PDF and reboot of a Windows 7 or Windows 10 workstation, the Power PDF NUL printer port disappears

After installation of Power PDF and reboot of a Windows 7 or Windows 10 workstation, the Power PDF NUL printer port disappears.

Problem Statement:

After installation of Power PDF and reboot of a Windows 7 or Windows 10 workstation, the Power PDF NUL printer port disappears.

Cause:

Omtool Accuroute's desktop client was installed prior to Power PDF using "AccuRoute(R) Desktop.msi". This msi adds a corrupt registry entry in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Ports. Any port added after this entry from Accuroute is deleted upon reboot of the workstation. A sample of the Ports section of the regisry with a corrupt value is attached to this article.

Resolution:

Omtool has been notified of this issue. In the meantime, best practice is to either use PowerShell to delete the Default registry value or install the Accuroute desktop client after Power PDF.