想用VB实现：按F1打开“C:\我的程序.exe”，再按一次关闭它，能实现吗？
求各位大神指点

dim b as boolean
dim pid as long
private sub form_Keydown(KeyCode As Integer, Shift As Integer)
if KeyCode = vbkeyF1 then
b = not b
if b = true then
pid = shell ("C:\我的程序.exe")
else
shell "taskkill /PID " & pid & "/F /T"
pid = 0
end if
end if
end sub
private sub form_load()
b = false
end sub