ok, after looking around it would appear that the settings for the Taskbar visuals & toolbars and the desktop icons are all stored at: [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\Desktop] However the settings are effectively not human-readable as they're simply gigantic strings of hex values. Here's what I exported in regedit: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\Desktop] "TaskbarWinXP"=hex:0c,00,00,00,08,00,00,00,02,00,00,00,00,00,00,00,b0,e2,2b,d8,\ 64,57,d0,11,a9,6e,00,c0,4f,d7,05,a2,22,00,1c,00,0a,11,00,00,1a,00,00,00,01,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,4c,00,00,00,01,14,02,00,00,00,\ 00,00,c0,00,00,00,00,00,00,46,81,00,00,00,11,00,00,00,ec,fc,cc,dc,c2,15,c5,\ 01,80,ca,cb,10,18,18,c5,01,32,c9,a5,bb,ee,15,c5,01,00,00,00,00,00,00,00,00,\ 01,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,07,02,14,00,1f,50,e0,4f,d0,\ 20,ea,3a,69,10,a2,d8,08,00,2b,30,30,9d,19,00,2f,43,3a,5c,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,5c,00,31,00,00,00,00,00,53,32,af,01,\ 10,00,44,4f,43,55,4d,45,7e,31,00,00,44,00,03,00,04,00,ef,be,52,32,d1,64,54,\ 32,d8,a0,14,00,00,00,44,00,6f,00,63,00,75,00,6d,00,65,00,6e,00,74,00,73,00,\ 20,00,61,00,6e,00,64,00,20,00,53,00,65,00,74,00,74,00,69,00,6e,00,67,00,73,\ 00,00,00,18,00,3c,00,31,00,00,00,00,00,52,32,02,96,10,00,50,61,74,72,69,63,\ 6b,00,26,00,03,00,04,00,ef,be,52,32,a4,70,54,32,cb,a0,14,00,00,00,50,00,61,\ 00,74,00,72,00,69,00,63,00,6b,00,00,00,16,00,64,00,31,00,00,00,00,00,53,32,\ 0a,0e,13,00,41,50,50,4c,49,43,7e,31,00,00,4c,00,03,00,04,00,ef,be,52,32,a4,\ 70,54,32,82,a1,14,00,36,00,41,00,70,00,70,00,6c,00,69,00,63,00,61,00,74,00,\ 69,00,6f,00,6e,00,20,00,44,00,61,00,74,00,61,00,00,00,40,73,68,65,6c,6c,33,\ 32,2e,64,6c,6c,2c,2d,32,31,37,36,35,00,18,00,42,00,31,00,00,00,00,00,52,32,\ a4,70,14,00,4d,49,43,52,4f,53,7e,31,00,00,2a,00,03,00,04,00,ef,be,52,32,a4,\ 70,52,32,a7,70,14,00,00,00,4d,00,69,00,63,00,72,00,6f,00,73,00,6f,00,66,00,\ 74,00,00,00,18,00,52,00,31,00,00,00,00,00,52,32,a7,70,10,00,49,4e,54,45,52,\ 4e,7e,31,00,00,3a,00,03,00,04,00,ef,be,52,32,a4,70,52,32,a7,70,14,00,00,00,\ 49,00,6e,00,74,00,65,00,72,00,6e,00,65,00,74,00,20,00,45,00,78,00,70,00,6c,\ 00,6f,00,72,00,65,00,72,00,00,00,18,00,48,00,31,00,00,00,00,00,52,32,ab,70,\ 11,00,51,55,49,43,4b,4c,7e,31,00,00,30,00,03,00,04,00,ef,be,52,32,a7,70,52,\ 32,ab,70,14,00,00,00,51,00,75,00,69,00,63,00,6b,00,20,00,4c,00,61,00,75,00,\ 6e,00,63,00,68,00,00,00,18,00,00,00,10,00,00,00,05,00,00,a0,1a,00,00,00,29,\ 01,00,00,60,00,00,00,03,00,00,a0,58,00,00,00,00,00,00,00,73,75,69,74,63,61,\ 73,65,00,00,00,00,00,00,00,00,9c,e0,9e,35,b2,33,5e,42,b6,1a,98,37,fb,ac,80,\ a7,d2,d3,1f,19,b6,81,d9,11,9f,32,00,e0,18,b4,ea,ac,9c,e0,9e,35,b2,33,5e,42,\ b6,1a,98,37,fb,ac,80,a7,d2,d3,1f,19,b6,81,d9,11,9f,32,00,e0,18,b4,ea,ac,00,\ 00,00,00,08,00,00,00,02,00,00,00,e2,00,00,00,01,00,00,00,02,00,00,00,60,00,\ 00,00,00,00,00,00,52,00,32,00,1e,02,00,00,52,32,66,9a,20,00,46,49,52,45,46,\ 4f,7e,31,2e,4c,4e,4b,00,00,36,00,03,00,04,00,ef,be,52,32,66,9a,55,32,9a,08,\ 14,00,00,00,66,00,69,00,72,00,65,00,66,00,6f,00,78,00,2e,00,65,00,78,00,65,\ 00,2e,00,6c,00,6e,00,6b,00,00,00,1c,00,00,00,00,00,00,00,76,00,00,00,01,00,\ 00,00,68,00,32,00,4f,00,00,00,52,32,ab,70,20,00,53,48,4f,57,44,45,7e,31,2e,\ 53,43,46,00,00,4c,00,03,00,04,00,ef,be,52,32,ab,70,55,32,9b,08,14,00,36,00,\ 53,00,68,00,6f,00,77,00,20,00,44,00,65,00,73,00,6b,00,74,00,6f,00,70,00,2e,\ 00,73,00,63,00,66,00,00,00,40,78,70,73,70,32,72,65,73,2e,64,6c,6c,2c,2d,36,\ 31,30,30,00,1c,00,00,00,00,00,00,00,00,00,00,00,e0,06,00,00,00,00,00,00,16,\ 00,00,00,00,00,00,00,00,00,00,00,16,00,00,00,00,00,00,00,01,00,00,00,01,00,\ 00,00,aa,4f,28,68,48,6a,d0,11,8c,78,00,c0,4f,d9,18,b4,0c,03,00,00,e0,0c,00,\ 00,00,00,00,00,16,00,00,00,00,00,00,00,00,00,00,00,16,00,00,00,00,00,00,00,\ 01,00,00,00 "Toolbars"=hex:11,00,00,00,00,00,00,00 "Upgrade"=dword:00000001 The only thing I'm not entirely clear on is what precisely "Upgrade" is. Any ideas? a google search on this string is understandably fruitless...