As Mr Shenan Stanley says; not natively, in WinXP, but it *is* possible to change the
opacity of any window, to any level of opacity, by downloading the very small, very
powerful, free utility - NIRCMD.EXE
Amongst many of it's varied functions is the ability to set the level of opacity of
any window, thus :
nircmd.exe win trans title "Calculator" 192
....this command, with the parameter "192", would set the opacity of Calculator to
25% - total opacity of 100% would be "255" and you would use this parameter to bring
the appearance back to normal. You can also use the parameter "0" to make the window
"disappear" altogether!!
Just download the zip-file by clicking on the link below - extract and copy :
nircmd.exe to your "windows" or "system32" directory (or any dir that appears in
your "path" variable). Then extract and read the help-file : nircmd.chm
Download "nircmd.exe" from :
http://www.nirsoft.net/utils/nircmd.zip
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Cheers, Tim Meddick, Peckham, London.