A Bug's Life

Ok, I've ascertained that I can remove the crap with Ad-Aware, but it gets re-installed on startup.

A bit of digging finds I have a program called Watch, which I don't recognise.

Its lgc file is like this
{
o c1646160 2b200 "C:\WINDOWS\TWAIN_32\A4S2_600\WATCH.EXE"
R c1646160 0 40
R c1646160 80 f8
R c1646160 80 1e8
R c1646160 d200 1000
R c1646160 c000 1000
o c163c560 e4000 "C:\WINDOWS\SYSTEM\MFC40.DLL"
R c163c560 0 100
R c163c560 40 100
R c163c560 5346 100
R c163c560 a8 100
R c163c560 5e0b 100
etc for lots more dlls

And its ini file is like this
[Scanning Desktop]
Path=C:\MSCAN\Msoffice

[Cover Driven]
Cover Driven=Yes
Method=Close2Open
Status=Close
Timer3=500

[Show Startup Screen]
Show Startup=No

[Model Information]
Model=A4S2600
Path=A4S2_600
Driver=A4S2_600.IOB
DS=A4S2_600.DS
Info=A4S2INFO_600
Style=1200 III EP

And there is a file watch.exe in C:\WINDOWS\TWAIN_32\A4S2_600

In the absence of a Clanger, I put it to you - does this look like the source of my problems?