File Extension PF

.PF File

File extension: PF
File type: Prefetch (also called Scenario) File

Notes about the PF file extension:

To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The PF file type is primarily associated with 'Prefetch (also called Scenario) File' by Microsoft Corporation. Prefetch files are essentially a resource list. Any time a program is executed, Windows XP will attempt to find a pre-existing prefetch file, and if it's available, it will use it to make the application load up faster. The file will also be updated after it is accessed, so that the more an application is used, the bigger the drop in loading time (to a point). If the application doesn't already have an associated prefetch file, Windows XP will create one. Those files are stored in the \%windir%\prefetch directory. One important note is that the process depends on the Task Scheduler service. If the Task Scheduler service isn't running, the prefetch mechanism isn't used and the files won't be read or updated.

Detailed information for file extension PF:

Primary association: Prefetch (also called Scenario) File
Company: Microsoft Corporation
Identifying characters Hex: 00 00 00 53 43 43 41 , ASCII: SCCA
Related links: Wikipedia Prefetcher Page

Other applications associated with file type PF:

  • Aladdin Systems Private Files Encrypted File
  • Archive
  • ICC ProfileWindows ICM profile.
  • Monitor or Printer Profile File
  • Progress (Database Parameter File) by Progress Software Corporation
  • Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))
File Identifier - TrID
'Identifying characters' used on are
provided by Marco Pontello from his TrID database

To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension PF click this link to expand/hide the additional area.

System Info for File Extension .PF

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: StuffIt.Compressed.File.Expand

ProgramID: StuffItArchive, FileType: Aladdin StuffIt Archive, AppName: Aladdin Expander

ProgramID: MediaPackageFile
EXEFile: %ProgramFiles%\Microsoft Office\Office10\MSTORE.EXE %1

ProgramID: MediaPackageFile
EXEFile: %ProgramFiles%\Microsoft Office\OFFICE11\MSTORE.EXE %1

ProgramID: MediaPackageFile
EXEFile: %ProgramFiles%\msoffice\OFFICE11\MSTORE.EXE %1

ProgramID: OPFFile
EXEFile: %ProgramFiles%\Softex\OmniPass\opshella.exe %1

ProgramID: SoundTrax.Project
EXEFile: %ProgramFiles%\Ahead\NEROSO~1\SOUNDT~1.EXE %1

ProgramID: StuffIt.Compressed.File.Expand
EXEFile: %ProgramFiles%\StuffIt Standard\stuffit.exe -expand %1 -from_shell

ProgramID: StuffIt.Encoded.File.Expand
EXEFile: %ProgramFiles%\Aladdin Systems\StuffIt\\stuffit.exe -expand %1 -from_shell -override_open_tutorial

ProgramID: StuffItArchive
EXEFile: %ProgramFiles%\WinZip\winzip32.exe %1

ProgramID: StuffIt.Encoded.File.Expand
EXEFile: %ProgramFiles%\Allume Systems\StuffIt\stuffit.exe -expand %1 -from_shell -override_open_tutorial

ProgramID: StuffIt.Compressed.File.Expand
EXEFile: %ProgramFiles%\Aladdin Systems\StuffIt 7.5\stuffit.exe -expand %1 -from_shell

ProgramID: pf_file
EXEFile: %ProgramFiles%\Deskman 5\deskman.exe

ProgramID: StuffIt.Compressed.File.Expand
EXEFile: %ProgramFiles%\Aladdin Systems\StuffIt Standard\stuffit.exe -expand -from_shell

ProgramID: StuffIt.Encoded.File.Expand
EXEFile: %ProgramFiles%\Smith Micro\StuffIt\stuffit.exe -expand -from_shell -override_open_tutorial

ProgramID: MimarSinan Codex
EXEFile: %SystemRoot%\explorer.exe /idlist,%I,%L

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