Thanks for the correction vlk. 15mb estimate is more accurate. Actually, "in use" memory on windows start up on my machine is about 9mb.
[Current Process Pane]
CMD = "C:\Program Files\Alwil Software\Avast4\ashserv.exe"
Curr Dir = C:\Program Files\Alwil Software\Avast4
PID/Parent PID = FFFFB12B / FFFF479B
Started by = C:\WINDOWS\SYSTEM\MPREXE.EXE
Data KB* = 6,480 in mem = 3,608 in use = 2,376
Code KB** = 11,348 in mem = 3,072 in use = 2,556
Handles Count = 111
Windows = 4
[Current Process Pane]
CMD = "C:\PROGRA~1\ALWILS~1\AVAST4\ashmaisv.exe"
Curr Dir = C:\
PID/Parent PID = FFFC588B / FFFEEED7
Started by = C:\WINDOWS\EXPLORER.EXE
Data KB* = 4,064 in mem = 1,940 in use = 1,396
Code KB** = 11,184 in mem = 3,148 in use = 2,404
Handles Count = 64
Windows = 1
=====================================
*Data KB
Amount of memory used for data by current process (in kilobytes): total amount, in mem – in physical memory and in use – recently used. Available under Windows 9x (95/98/ME) only.