On Windows, the program is installed to

C:\Program Files (x86)\Zim Desktop Wiki

The location of the configuration files, according to the onnline documentation is

$XDG_CONFIG_HOME = %appdata%/zim/config/
$XDG_DATA_HOME   = %appdata%/zim/data/

I have the following configuration for zim prefereneces.conf and style.conf. I’ll list there contents here for reference.

prefereneces.conf

[GtkInterface]
tearoff_menus=False
toggle_on_ctrlspace=False
remove_links_on_delete=True
always_use_last_cursor_pos=True
gtk_bell=False
toggle_on_altspace=False
mouse_nav_button_back=8
mouse_nav_button_forw=9
autosave_timeout=10
toolbar_style=None
toolbar_size=None
autosave_use_thread=True

[PageView]
follow_on_enter=True
read_only_cursor=False
autolink_camelcase=False
autolink_files=True
autoselect=True
unindent_on_backspace=True
cycle_checkbox_type=True
recursive_indentlist=True
recursive_checklist=False
auto_reformat=False
copy_format=Text
file_templates_folder=~/Templates

[General]
plugins=["calendar","insertsymbol","printtobrowser"]

[CalendarPlugin]
embedded=False
pane=('left_pane', 'top')
granularity=Day
namespace=Calendar
auto_expand_in_index=True

[InsertSymbolPlugin]

[PrintToBrowserPlugin]

style.conf

[TextView]
indent=30
tabs=None
linespacing=3
font=Georgia 16
justify=

[Tag strong]
weight=PANGO_WEIGHT_BOLD

[Tag emphasis]
style=PANGO_STYLE_ITALIC

[Tag mark]
background=yellow

[Tag strike]
foreground=grey
strikethrough=True

[Tag code]
foreground=#2e3436
family=monospace

[Tag pre]
foreground=#2e3436
indent=20
wrap-mode=GTK_WRAP_NONE
family=monospace

[Tag link]
foreground=blue

[Tag tag]
foreground=#ce5c00

[Tag h1]
foreground=#4e9a06
scale=1.75
weight=PANGO_WEIGHT_BOLD

[Tag h2]
foreground=#003366
scale=1.52
weight=PANGO_WEIGHT_BOLD

[Tag h3]
foreground=#336776
style=PANGO_STYLE_ITALIC
scale=1.2
weight=PANGO_WEIGHT_BOLD

[Tag h4]
foreground=#4e9a06
scale=1.15
weight=PANGO_WEIGHT_BOLD

[Tag h5]
foreground=#4e9a06
weight=PANGO_WEIGHT_BOLD

[Tag h6]
foreground=#4e9a06