Known ZPD Files

Leading ZPD Type

.ZPD

Extension:	.zpd
Type:	ABC Zeroadic Predicates

Source code file contains zeroadic predicate functions for ABC, an interactive programming language and environment for personal computing, designed as a replacement for BASIC.

Organization:	Open Source
File Category:	Developer Files
Entry:	HKEY_CLASSES_ROOT\.zpd

Software Programs That Open The ABC Zeroadic Predicates:

ABC Programming langauge by Open Source

Windows

Mac

Linux

Alternative ZPD Types

.ZPD

Extension:	.zpd
Type:	ZoneAlarm Mailsafe Renamed Data

This ZPD file extension is related to ZoneAlarm; a firewall software initially created using Zone Labs and nowadays developed by CheckPoint Software LTD. A file having ZPD extension is one that its initial file extension is renamed because of security reasons.

Organization:	Check Point Software Technologies Ltd.
File Category:	Data Files

Software Programs That Open ZoneAlarm Mailsafe Renamed Data Files:

WinZip by Corel

Compatible with:

Windows

Mac

Android

ZoneAlarm Antivirus by Check Point Software Technologies Ltd.

Compatible with:

Windows

ZoneAlarm Pro by Check Point Software Technologies Ltd.

Compatible with:

Windows

Mailsafe by ZoneAlarm

Compatible with:

Windows

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Sources of ZPD Problems

Common ZPD Opening Problems

Missing ABC Programming langauge

You attempt to load your ZPD file and get an error such as "%%os%% Can't Open The ZPD File Extension". Generally, this is experienced in %%os%% because ABC Programming langauge isn't installed on your PC. This will prevent you from double-clicking to open the ZPD file because the OS doesn’t know how to handle it.

Tip: If you know of another program that can open your ZPD file, you can try opening it by selecting the application from the programs listed.

Obsolete Version of ABC Programming langauge

In some cases, you might have a newer (or older) version of a ABC Zeroadic Predicates file that is unsupported by your installed application version. If you do not have the proper version ABC Programming langauge (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. Most of the time your ABC Zeroadic Predicates file was created by a newer ABC Programming langauge than what you have installed.

Tip: Sometimes you can get a clue about the version of ZPD file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).

Regardless, most of the ZPD file opening problems relate to not having the right version of ABC Programming langauge installed.

Other Causes of ZPD File Opening Problems

You can still experience errors opening ZPD files even with the latest version of ABC Programming langauge installed on your PC. Other ZPD opening errors can be created by other system problems inside of %%os%%. Additional factors include:

• ZPD file type Registry entries are wrong
• The ZPD file description within the Windows Registry was removed
• Invalid installation of a ZPD-associated program (eg. ABC Programming langauge)
• Your ZPD can't be loaded properly (file corruption)
• Your ZPD has adversely impacted by malware
• Drivers associated with ZPD software need to be updated
• Your computer does not have the adequate system resources to open the ABC Zeroadic Predicates format