GIMP-Help doesn't create an Add/Remove programs entry.
== GTK ==
* http://sourceforge.net/project/showfiles.php?group_id=121075
<source lang="xml">
<package
id="gtk"
name="GTK"
revision="0"
reboot="false"
priority="0">
<check type="file" condition="exists" path="%COMMONPROGRAMFILES%\GTK\2.0\bin\libgtk-win32-2.0-0.dll"/>
<install cmd="%SOFTWARE%\gimp\gtk+-2.6.9-setup.exe SP- /SILENT /NORESTART"/>
<remove cmd='"%CommonProgramFiles%"\GTK\2.0\unins000.exe" /SILENT'/>
</package>
</source>
Note that the check condition here relies on a version-specific file which could change, libgtk-win32-2.0.0.dll.
Package for newer gtk-2.10:
<source lang="xml">
<package
id="gtk"
name="gtk+ 2.10.11"
revision="1"
reboot="false"
priority="0">
<check type="uninstall" condition="exists" path="GTK+ 2.10.11 runtime environment"/>
<install cmd='%SOFTWARE%\gimp\gtk+-2.10.11-setup.exe SP- /SILENT /NORESTART'/>
<remove cmd='"%CommonProgramFiles%"\GTK\2.0\setup\unins000.exe" /SILENT'/>
</package>
</source>
See also a silent installer and uninstaller for [[GTK2_runtime]].
== Older Versions ==