All about SPOP Files

The SPOP file type is primarily associated with InterTrust SPOP.

SPOPFile Extension SPOP
 File extension: SPOP
File type:  InterTrust SPOP files

What is an SPOP file?

SPOP files mostly belong to InterTrust SPOP. (browser Plug-in InterTrust Redemption Wizard)

How do you open SPOP files?

You need a suitable software like InterTrust SPOP to open an SPOP file. You need a suitable software like InterTrust SPOP to open an SPOP file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your SPOP file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a SPOP file directly in the browser:. Just drag the file onto this browser window and drop it.

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Trouble Opening a .SPOP File? These Steps Will Help

Since .SPOP files may come from different programs, they aren't universally openable.

  1. Identify the Source: These files often originate from the InterTrust SPOP DRM plugin, HAProxy's Stream Processing Offload Protocol, or a Spotify daemon cache.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer. You might see:
    • Readable XML/JSON, suggesting configuration data.
    • "PK", indicating a ZIP-based archive.
    • Unreadable magic bytes, implying proprietary DRM packaging.
  3. Use the Original Software: The original program is usually required. Try InterTrust SPOP, HAProxy, or Spop, but since the format is ambiguous, ask the sender if uncertain.
  4. Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for SPOP File Extension


The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: InterTrustSPOP, FileType: InterTrust SPOP, AppName: Advanced Browser
EXEFile: browser.exe
ProgramID: InterTrustSPOP, FileType: InterTrust SPOP, AppName: America Online
EXEFile: aol.exe
ProgramID: InterTrustSPOP, FileType: InterTrust SPOP, AppName: Internet Explorer
EXEFile: iexplore.exe
ProgramID: InterTrustSPOP, FileType: InterTrust SPOP, AppName: Mozilla
EXEFile: MOZILLA.EXE
ProgramID: InterTrustSPOP, FileType: InterTrust SPOP, AppName: NETSCP
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Internet Explorer\iexplore.exe -nohome
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Internet Explorer\iexplore.exe -nohome %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\MOZILL~1\FIREFOX.EXE -url %1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Netscape\COMMUN~1\Program\Netscape.exe -h %1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\NETSCAPE\NETSCAPE\NETSCP.EXE -url %1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Opera7\opera.exe %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Yahoo!\browser\YBrowser.exe %1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Internet Explorer\Plugins %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\WMCONN~1\wm.exe -u%1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\INTERN~1\iexplore.exe -nohome %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\AOL9~1.0\aol.exe -u%1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\intern~1\iexplore.exe\ -nohome %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\MOZILLA.ORG\MOZILLA\MOZILLA.EXE -url %1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\NETSCAPE\NETSCA~1\NETSCAPE.EXE -url %1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\AOL9~1.0A\aol.exe -u%1 %1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Avant Browser\avant.exe
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\AMERIC~1.0\aol.exe -u%1
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\INTERN~1\INTERN~1.EXE
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\MOZILL~1\FIREFOX.EXE -url -requestPending
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\MOZILLA FIREFOX\FIREFOX.EXE -url
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\MOZILL~1\FIREFOX.EXE -requestPending -osint -url
ProgramID: InterTrustSPOP
EXEFile: %ProgramFiles%\Google\Chrome\Application\chrome.exe
Show all 27 listingsTo Top

an spop InterTrust SPOP file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with SPOP files

  • Associate the SPOP file extension with the correct application.
  • Update your software that should actually open InterTrust SPOP files. Because only the current version supports the latest SPOP file format. Search, therefore, e.g. on the manufacturer website after an available InterTrust SPOP update.
  • To make sure that your SPOP file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .SPOP file online - secure, fast, and no downloads needed.
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