File extension Details of PWL, PPD, PRF, PREFPANE, PK2, PID, P7B, POL, SCF

Name:	PWL
File Type:	Windows Password List
Popularity:	3
Category:	system
File Description:	List of passwords used for the main Windows login, dial-up and network passwords, and other programs such as NetMeeting; stored in an encrypted format in the Windows directory; used to automatically authenticate the user for login screens after the "Remember Password" option has been checked.
Open Programs:	Windows Not meant to be opened Can be viewed with LastBit PWLView or PWL Tools

Name:	PPD
File Type:	PostScript Printer Description File
Popularity:	3
Category:	system
File Description:	File that serves as a driver for a PostScript printer; describes the font, paper sizes, DPI resolution, memory configuration, and other features and capabilities supported by the printer. PPD files may also contain PostScript code that can be referenced during a print job; this code includes commands that invoke specific PostScript printing features.
Open Programs:	Mac OS Referenced by the printer Viewable with a text editor Windows Referenced by the printer Viewable with a text editor

Name:	PRF
File Type:	Windows System File
Popularity:	4
Category:	system
File Description:	Contains settings and preferences used by the Windows operating system; may also be used by other applications to store program settings.
Open Programs:	Windows Referenced by Windows and should not be opened directly

Name:	PREFPANE
File Type:	Mac OS X System Preference Pane
Popularity:	3
Category:	system
File Description:	Adds a system preference to the Mac OS X System Preferences window; Apple preferences are stored in System->Library->PreferencePanes, while third-party preferences are stored in the Library->PreferencePanes directory
Open Programs:	Mac OS Used by the Mac OS X operating system

Name:	PK2
File Type:	Silkroad Online Game Data File
Popularity:	3
Category:	system
File Description:	Contains game data used by Silkroad, a massively-multiplayer online role-playing game (MMORPG) developed by Joymax, a South Korean company; may contain game graphics, sounds, music, etc; saved in a compressed and encrypted format. Examples of PK2 files include Media.pk2, Music.pk2, Map.pk2, and Particles.pk2; Silkroad P2K files are not meant to be opened manually, but can possibly be edited with the XVI32 hex editor.
Open Programs:	Windows Joymax Silkroad Online

Name:	PID
File Type:	Creative Driver File   (Most common)
Popularity:	3
Category:	system
File Description:	Hardware driver file such as "PdtIdMgr.pid," installed by Creative software; typically installed in the "Program Files\Creative\Shared Files\" directory along with other driver files; enables communication with Creative hardware devices, such as sound cards or portable media players like the Creative Zen.
Open Programs:	Windows Used by Creative hardware devices

Name:	P7B
File Type:	PKCS #7 Certificate File
Popularity:	3
Category:	system
File Description:	Security file that stores secure certificates used to authenticate a person or device, such as a computer or Web server; similar to a Base-64 (.CER) certificate, but uses different formatting; can be installed using the Certificate Import Wizard by right-clicking the file and selecting "Install Certificate."
Open Programs:	Windows Microsoft Certificate Manager or Certificate Import Wizard

Name:	POL
File Type:	Windows Policy File
Popularity:	3
Category:	system
File Description:	Defines a specific user or user group's settings; contains registry information for all computers, users, and groups that will use the policy file
Open Programs:	Windows System Policy Editor

Name:	SCF
File Type:	Windows Explorer Command   (Most common)
Popularity:	4
Category:	system
File Description:	Command used by Windows Explorer; for example, to move up or down a directory or show the Desktop; run via Internet Explorer.
Open Programs:	Windows SCF Editor Microsoft Windows Explorer

Name:	STR
File Type:	Windows Screensaver File
Popularity:	1
Category:	system
File Description:	Screensaver used by Windows computers; contains animations, pictures, text, or moving patterns that fill the screen when the computer has been idle for a specific amount of time; can be selected within the Displays control panel. Most screensavers have a .SCR extension.
Open Programs:	Windows Used by the Windows operating system