搜索光驱
然后:
盘符+文件的路径(就是\photoshop\setup.exe)
然后:
应该就是这样吧...........

on testFile theFileName
repeat with i=67 to 90
p=false
global myFile
if objectP (myFile) then
nothing
else
set myfile=new(xtra "fileio")
end if
drive=numtochar(i)
mypath=string(drive&":\"&thefilename)

openFile myFile, mypath,0
set x to readFile(myFile)
closeFile myFile
if voidp(x) then
nothing
else
return x
exit
end if

end repeat
end
on preparemovie
put testfile("love.txt")
end

用这个程序可以判断光驱在哪个盘