MapInfo Professional 10.5 or 11 is unable to Print to the MapInfo PDF Printer Version PDF printer driver in Windows 7.

To resolve this issue, change the Port settings on the printer driver. The following steps will walk through that process.

Step 1: Go to the Windows 7 Start Button and choose Control Panel. Step
2: Select the Devices and Printers option.
Step 3: Right click on the MapInfo PDF Printer Version 10.5 or 11.0 and choose Printer Properties.
Step 4: Access the Ports Tab. If it is set as below, LPT1 checked, this setting will need to change.
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Step 5: Click the Add Port button, highlight the Local Port option, and choose New Port

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Step 6: Name the port "LocalHostPort", Local Port, etc.
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Step 7: Click OK, and then Click Close
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Step 8: Verify that the new local port that was created is checked:
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Once this is all done, restart MapInfo Professional and attempt to print once again.
UPDATED:  April 14, 2017