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I copy-n-pasted some text from Notepad into a command line window. The copied text included a tab character prefixing the text I copied, for example "{tab}test.exe". When I pasted this into the command line, the result was:

@OpenWithToastLogo.pngtest.exe

Wait, what?

A quick search on the computer in question as well as a subsequent one on Google revealed the following:

  • On the computer in question, there is in fact a file named @OpenWithToastLogo.png located in the Windows System32 folder.
  • On Google, my scan of the search results seemed to show only non-specific answers (as of the writing of this question, that is) with the standard bevy of "is this malware" sites indicating that a virus scan showed the file not to be a virus.

What is the purpose of the @OpenWithToastLogo.png file?

Also, why is "@OpenWithToastLogo.png" (text) associated with a pasted tab character in a command line window?

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  • possible duplicate of How can I remove malicious spyware, malware, viruses or rootkits from my PC?
    – Nifle
    Jan 9, 2015 at 18:45
  • 2
    Is it really .png? Tab trigger autocompletion.
    – Daniel B
    Jan 9, 2015 at 19:31
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    @DanielB: Ah, yes, auto-complete. That definitively answers Question #2 (above). The TAB character is being interpreted as auto-complete, which in this case returns the first file in the current folder of the command window.
    – László Koller
    Jan 9, 2015 at 19:47
  • Can you open the file in an image viewer? I'm curious what its contents are. "Toast" I know is used to describe the pop-up messages that appear over the UI in Android (usually when a task is complete), it's probably something similar for Windows 8.
    – baochan
    Jan 9, 2015 at 20:20
  • Toast is a video capture program. Do you have any Roxio products installed? If you really want to know where it came from, run Orca against c:\windows\installer to list all files associated with each installer.
    – user388043
    Jan 10, 2015 at 5:02

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