Getting Started/Build/Historic/KDE4 Windows
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KDE Installer for Windows
You can use this installer to download and install the various binary packages that you need to run KDE applications on MS Windows. KDE is free and open source so you can build all the applications "from scratch" from their source code; but as a convenience for others, volunteers create these precompiled packages and make them available on the Internet.
Disclaimer These are early days for KDE4 on Windows, some programs work better than others and some fail to run altogether.
If you experience any problems please have a look into our mailing list.
You can also use the KDE Installer for Windows to install source code and the packages that you need to build KDE4 on Windows (although if you are building KDE4 on Windows you may prefer to use the emerge system to build KDE and its requirements from latest source); see Getting Started/Build/KDE4/Windows.
Summary of Steps
For the first time when you run KDE-installer you'll see the welcome screen. Since it's your first launch - leave the checkbox below unchecked. Proceed to the next screen, where you are to choose the KDE4 installation directory. It can be any of your favor, e.g. C:\KDE4. On the next screen you are to define who you are - End User ot a Developer. The End user installation installs only binary packages and libraries needed to run KDE application. Developer mode provides you with the source code for all packages needed to build KDE from scratch. If you have chosen to be a Developer, then you need to decide what compiler to use - MinGW or MSVC. In End User mode there're only MSVC packages currently available. Proceed to the next screen and there you're to choose the directory where all the downloaded packages will be stored. Let it be something like C:\KDE4-tmp or C:\KDE4-packages. The next screen will ask you to choose the type of your connection to the internet. It's usefull when you are using proxy. If you don't use proxy, then just click 'Next'. If you are unsure of whether you're using proxy or if you have web browser configured to work with it properly - choose the second or the third option, according to your favourite web-browser. If you'd like to set all the settings manually - choose the last option and go ahead. When you click the 'Next' button the list of available servers will be loaded and you could choose the one, which is closer to you. Currently the list isn't very long, though. If you click 'Next' again the list of all available pckages will be loaded and processed to provide you with the list of package groups that you're able to select for further installation. There short description next to each group of packages for you make your choice easier. Selcet the packages you need. Proceed to the next screen. Here you can see all the required dependencies. Just click 'Next' to download them all. After all the packages are downloaded they'll be unpacked and processed by the installer. The final window will tell that your KDE installation for windows is complete.
- Visit http://www.winkde.org/pub/kde/ports/win32/installer/
- Download and save the latest version to a directory, e.g. C:\KDE4
- Run the installer, download what you need (see Download needed packages below).
- Add a KDEDIRS environment variable (Start > Control Panel > System > Advanced > Environment Variables, click [New] User variable and create Variable name KDEDIRS with Variable value the directory where you installed KDE4, e.g. C:\KDE4).
- Add your lib directory, %KDEDIRS\lib, and your bin directory, %KDEDIRS\bin, to your Windows %PATH%. (Start > Control Panel > System > Advanced > Environment Variables, double-click the Path System Variable and add this to your path separated by semicolon.)
- If you don't have Visual Studio 2005 installed, download and install the "Microsoft Visual C++ 2005 SP1 Redistributable Package (x86)" 
- Try running a Qt application in the bin directory, such as linguist.exe
- If that works, try running a KDE application such as kwrite.exe.
Download needed packages
A single program in the The K Desktop Environment depends on many other libraries and packages; that is why each .exe is comparatively small. The KDE Installer for Windows will fetch all those dependencies for you.
There are two development systems for KDE on Windows, Microsoft's Visual C and MinGW. Even if you are only running binaries and do not intend to build KDE4 yourself, you need to choose between these because of the provided runtime environments. You're free to decide which to take.
The KDE programs themselves are organized into several groups: kdeedu, kdegames, and kdegraphics.
The Dependencies tab for a particular package lists some of the additional packages it needs.
Issues with KDE Installer for Windows
If you find an issue, please report to .
If something goes wrong during installation, for example a file can't be replaced because it is still in use, the installer may still report successful completion. If you see any alert or failure message from the installer, when it completes quit and re-run it.
Testing your installation
Navigate to the bin directory.
See if you can run the Qt program assistant.exe. Qt programs have fewer dependencies than a full-blown KDE application.
If that works, try running a simple KDE application, such as lskat.exe from the kdegames package.
Look into your start menu: there will be a new entry KDE 4.XX.XX Release. Below that folder you can find all the apps you installed.
Set Oxygen style for widgets
The default KDE widget style on Windows is the native one. You already have Oxygen style installed (which is a plugin library %KDEROOT%\lib\kde4\plugins\styles\oxygen.dll), so it can be used as well. To set it for a single user:
- edit %UserPROFILE%\.kde\share\config\kdeglobals with any text editor (e.g. kwrite) Note: `cd %UserPROFILE%` will change to the right directory, effectively telling you what %UserPROFILE% expands to, such as "C:\Documents and Settings\mark"
- locate the General section (a line containing the text "[General]"). If there is no General section, create one.
- Within the General section ([General]), edit the line containing widgetStyle=.... so that it reads widgetStyle=oxygen. If there is no such widgetStyle=... line, create it.
Newly started applications should be displayed with Oxygen style now.
Using kdewin-installer-gui-0.9.2.exe to install 4.00.73 packages:
- starting a KDE program correctly starts dbus-daemon.exe
- many games run
- choosing File > Open correctly starts klauncher.exe, kioslave.exe and kded4.exe, and runs kbuildsycoca4.exe as needed.
- Full-text search in khelpcenter does not work because Perl scripts are disabled.
- Many applications have a generic icon in Windows Explorer.
- Applications that try to play sounds might display an alert about "Multimedia Backend" problems. This requires the Windows backend for Phonon. There is currently no support for that backend because of missing man-power.
- There are many other KDE programs that are not part of KDE 4.0.0 and are not currently packaged for MS Windows.
- By design, KDE-windows does not provide the full-blown KDE desktop, thus no KWin composite manager, KDE-specific "start" menus, Plasma desktop, etc.
- Some KDE programs use UNIX-specific features, such as konsole's use of pseudo-terminals, and thus are difficult to port to MS Windows.
Package status and contents
|kdebase||packaged||Konqueror, Dolphin, KWrite, etc.|
|kdegames||packaged||Kgoldrunner, Kpat, KMahjongg, etc.|
|kdesdk||packaged||Kate, Umbrello, etc.|
|kdetoys||packaged - Umbrello is missing currently||KTeatime, etc.|
|kdeedu||packaged||Marble, Parley, KStars, KHangman, etc.|
|kdegraphics||packaged||Okular, kolourpaint, etc.|
|amarok||not building||Amarok music player|
|koffice||packaged||KWord, Krita, Karbon, etc.|
|kdepim||not building||KMail, AKregator, etc.|
|kdenetwork||packaged||Kopete, KGet, etc.|
|kdeutils||not packaged||KGpg, KWallet, etc.|
|ktorrent||packaged||the KTorrent utility|
Deprecated: post-install steps
After manual installation of a package one has to run the included post-install.bat script (inside the manifest folder). This batch file includes at least the following steps.
Be sure that you have no KDE-related applications running: run the Windows Task Manager (taskmgr.exe), switch to its Processes tab, and kill all occurences of dbus-daemon.exe, kded4.exe, kioslave.exe and klauncher.exe (and all other KDE apps).
Open a Windows command prompt (cmd.exe) and navigate to the directory where you installed KDE. Say you installed KDE to C:\KDE4, then run from the cmd.exe window:
C:\KDE4> bin\update-mime-database C:\KDE4\share\mime
This will give you a lot of warning message. Most of them you can easily ignore; even if you should set XDG_DATA_HOME or XDG_DATA_DIRS it worked perfectly. If it says you should rerun update-mime-database as root then you're not within your installation directory.
After finishing the previous step, run
C:\KDE4> bin\kbuildsycoca4 --noincremental
If this tells you that your disk is full (which is most probably not the case) you have still some executables from KDE running. Please close them and try again.
Excuse us for the inconvenience — we hope for a better solution in the next release.