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CamStudio   (Compare Project)

License: gpl

Inno Setup   (Compare Project)

Mostly written in Pascal

License: BSD-3-Clause

WinDirStat: Windows Directory Statistics   (Compare Project)

Mostly written in C

License: gpl

Notepad++   (Compare Project)

Mostly written in C++

License: gpl

LibreOffice   (Compare Project)

Mostly written in C++

License: lgpl3, mozilla_public_2_0

FileZilla   (Compare Project)

Mostly written in C++

License: Unknown

Inkscape   (Compare Project)

Mostly written in C++

License: gpl

VLC media player   (Compare Project)

Mostly written in C

License: gpl, lgpl

SQLite   (Compare Project)

Mostly written in C

License: sqlite

PuTTY   (Compare Project)

Mostly written in C

License: mit