Here is what I have in my wpi config for one of the apps:

%usb%\spybotsd13.exe /verysilent /sp-

<{POST_SNAPBACK}>

That may be, but my point is, %usb% wont be set unless something similar to that IF EXIST statement is configured in WPI.. otherwsie WPI isnt gonna know what the heck %usb% is.

I have edited the WPI.cmd to include usb but it doesn't seem to work. Here is the code I have used:

@ECHO OFF
REM
REM WPI startup something.
REM 

REM Example, how to look for CDROM-drive. Must have a file called WIN51 in its root.
for %%i in (C D E F G H I J K L M N O P Q R S T U V W X Y Z) do if exist %%i:\WIN51 set CDROM=%%i:
echo Found CD-Rom as drive %CDROM%

REM Example, how to look for USB-drive. Must have a file called usb.txt in its root.
for %%h in (C D E F G H I J K L M N O P Q R S T U V W X Y Z) do if exist %%h:\usb.txt set USB=%%h:
echo Found USB as drive %USB%

Again.. try posting up in the WPI forum section.... youd be much more likely to get an answer there

ok moved onto wpi forum and linked to this topic.