Bgcall is a nonresident wallpaper changer that is launched from the Windows startup. (It exits soon after changing the wallpaper at the Windows logon.)

Other features are multiple monitors support (individual wallpaper setting), calendar display (merge into wallpaper), manual wallpaper setting, etc.

It can be downloaded from Software page.


Main Window Calendar Settings Options

Click the image to enlarge

Features Overview

Supported OSWindows XP/Vista/7 (32/64bit)
* This software cannot be used in Windows 7 Starter Edition.
Input FormatsBMP: 1/4/8/16/24/32bit (uncompressed bottom-up DIB)
PNG: 1/2/4/8/24/48bit
JPEG: 8bit/24bit
TIFF: 1/4/8/24/48bit (uncompressed)
GIF: 1/2/3/4/5/6/7/8bit
Susie plug-ins are available to load other files.
Display OptionsCalendar display, Only calendar update,
Image Settings: 100%, Enlarge, Shrink, Tile, Keep aspect ratio, etc
Translations Swedish (by Svenska språkfiler)
Greek (by
Chinese Traditional (by 風逸蘭)
--Thanks to the translators.

Command line options


/sIt exits soon after changing the wallpaper at the Windows logon.
/dIt exits soon after updating the calendar.
/zIgnore execution delay setting. specify it next to "/s" or "/d".


C:\Program Files\Bgcall\Bgcall.exe"  /d  /z

Wallpaper for each monitor (when using multiple monitors)

Subsequent monitor wallpaper is assigned in descending order from first monitor wallpaper shown by the list.