v7.3.3 - Fix CIA Hacking Notepad++ issue

  • Hi and thanks for all. Maybe, my problem but I see the error of SciLexer.dll starting Notepad++ 32-bit on Win 10 Pro 64-bit Anniversary Edition. Has anyone noticed the same?

  • @GlacialManYT

    What exactly is the error message?
    and do you have a SciLexer.dll in the directory where notepad++.exe has been installed?


  • C:\Program Files (x86)\Notepad++\SciLexer.dll
    CRC32: 7ffc0f72

    Certificate checking
    Check certificate of C:\Program Files (x86)\Notepad++\SciLexer.dll : Impossible to find the specified object

    Exception on WM_CREATE
    ScintillaEditView::init : SCINTILLA ERROR - can not load the dynamic library

  • @GlacialManYT

    and from where did you download notepad++?


  • https://notepad-plus-plus.org/repository/7.x/7.3.3/npp.7.3.3.Installer.exe
    CRC32: 8e15096a
    I also tried to disable AV and to install as admin

    Sorry but I’m a new user, I haven’t earned 2 reputation and I can only post once every 1200 seconds…

  • @GlacialManYT

    OK, I installed VirtualBox and loaded my aged Winodws 10 64bit VM,
    Downloaded npp7.3.3 (32bit) and installed it.
    Started npp - no problem. (The only problem is that it takes ages because of my old pc isn’t really capable of doing it.)

    So what is specific to your setup? Any ideas?


  • @GlacialManYT said:

    Certificate checking
    Check certificate of C:\Program Files (x86)\Notepad++\SciLexer.dll : Impossible to find the specified object

    It seems your SciLexer.dll in C:\Program Files (x86)\Notepad++ is not signed.
    Could you send me your SciLexer.dll to don.h@free.fr please?

  • E-Mail message sent.

  • @GlacialManYT Thank you.
    I have checked. The file (scilexer.dll) is correct.
    Could you

    1. make sure your OS is updated and restart your PC.
    2. download minimalist package both 32/64 bith version from notepad-plus-plus.org, create npp32 & npp32 under *c:\temp*, unzip both into c:\temp\npp32 & c:\temp\npp64 respectively, then give both a try?

  • Hello, Don,

    How are you ? Not too traumatized by the recent CIA Hacking issue. Thank you, for caring about our global security :-))

    Don, from the discussion, between Jean Heck, Mkupper and Claudia :


    I realized some tests. And, indeed, there is a bug, with clickable links, in the last versions of Notepad++

    To reproduce the bug :

    • Create a simple text file, named test.txt under the root C:\ of your machine

    • Start Notepad++

    • Open, first, any file, for instance, the change.log file

    • Now, in a new tab, type the single line, below :


    • Save this text file as Test_Lang.txt

    • Change the language of the Test_Lang.txt file to any language

    • Select the change.log file and, immediately, go back to the Test_Lang.txt file

    ( Note : this “switch” action allows to active the link, again ! )

    • Finally, double-click on the file://C:/test.txt link

    => I noticed that the double-click does NOT work, for the four languages ASP HTML JSP PHP, if the N++'s version is superior or equal to v7.3 !

    For all other languages, included Normal Text, the double-click DOES work and opens, as expected, the test.txt file, in Microsoft Notepad :-)

    Best Regards,


    P.S :

    • Of course, I suppose that the option Enable, in Settings… > Preferences… > MISC. > Clickable Link Settings is checked !

    • Perhaps, the reason(s) why double-click doesn’t work for the four languages ASP, HTML, JSP and PHP is(are) not the same for each of them :-((

  • I believe that enforcing the signature checking for just scilexer.dll is not enough:
    if I were a hacker, after this patching if I still want to hack a Notepad++
    I would just move to the next DLL !
    Question: why not enforce the signature checking for all the Notepad++ DLLs?

  • Hi Don, thanks for your help, I will make the test that you have suggested, as soon as possible. I take this opportunity to point out a small anomaly. When in Notepad++ several files are opened (txt, bat, cmd), if I modify or I delete any of these files, and Notepad++ is opened in background, when I switch to Notepad++ an useful window asks to me if I want to update the situation. The problem comes when I modify or I delete an opened file and, after, without switching to Notepad++, I open a file, I expect that its tab is selected, in the foreground, but, after having responded to the question of the said window, file is not pointed and I must search for it in the open tabs of Notepad++ (that generally are many). After the answer, according to me, should be selected the tab of the last opened file (or in phase of opening). Obviously, if I have modified or deleted some files, the questions are one for each file and, at the end of the answers, as said, should be selected the tab of the last opened file (or in phase of opening). That’s all, not so important but useful.

  • @guy038 @donho

    I’ve opened https://github.com/notepad-plus-plus/notepad-plus-plus/pull/3019 which solves the issue with clicking links in certain file types.

  • @donho : I have deeply uninstalled notepad++ 32-bit v7.3.3 and, after, I have cleaned the registry but the error persists. I have the same problem with all 32-bit versions ( I made a test also with this http://portableapps.com/apps/development/notepadpp_portable ). Instead, all 64-bit versions are working regularly. So, I’m using the 64-bit version also if, for now, I would prefer the 32-bit version, that supports all plug-ins. I can make a test on others Windows 10 Pro 64-bit Anniversary Edition. See you soon.

  • @GlacialManYT

    Can you run ProcMon to see what’s going on?
    Once downloaded, start it, create a filter for SciLexer.dll (Path ends with)
    make sure that (toolbar buttons) file system activity and process and thread activity
    have been pressed and start npp.
    What’s the result?


  • Thanks for your help Claudia, there was a system problem that I solved. Now all is ok.

  • Hi Dail,

    Many thanks for quickly finding a fix about the clickable links bug, when file language is ASP, HTML, JSP or PHP !



  • @cipher-1024 Thoughts on PR#3023 and Issue#3016?

  • Hi,

    Good day! Has anyone seeing this visually not pleasant multi-line tab bar since this update? Tabs now have got extra white space around making them look bad. Screenshot

  • @Shyam-Reddy There’s a discussion about it on Issue#3007

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