kill process/ end process of bluestacks -

i'm trying make program open , close bluestacks application. close means totally exiting application. since if exit bluestacks app process restart. processes i'm trying kill is:

1. "hd-blockdevice.exe"
2. "hd-agent.exe"
3. "hd-logrotatorservice.exe"
4. "hd-updaterservice.exe"

when manually kill first process, other process close except 2~3 ones. it's kinda pain kill 4 processes every time close application creating one. here code

public class form1 dim p() process  private sub form1_load(byval sender system.object, byval e system.eventargs) handles mybase.load      timer_processcheck.start() end sub  private sub timer_processcheck_tick(byval sender system.object, byval e system.eventargs) handles timer_processcheck.tick     p = process.getprocessesbyname("hd-blockdevice.exe")     if p.count > 0         ' process running         'button_close.enabled = true     else         ' process not running         'button_close.enabled = false     end if end sub  private sub button_open_click(byval sender system.object, byval e system.eventargs) handles button_open.click     process.start("c:\program files (x86)\bluestacks\hd-startlauncher.exe") end sub  private sub button_close_click(byval sender system.object, byval e system.eventargs) handles button_close.click     'p = process.getprocessesbyname("hd-blockdevice.exe")      'p.kill()     'p.close()      'while p.length > 0     'for integer = p.length - 1 0 step -1     'p(i).closemainwindow()      'next      'p = process.getprocessesbyname("hd-blockdevice.exe")     'end while      'timer_processkill.start()  end sub  private sub timer_processkill_tick(byval sender object, byval e system.eventargs) handles timer_processkill.tick     each prog process in process.getprocesses         if prog.processname = "hd-blockdevice.exe"             prog.kill()         end if     next end sub end class 

my problems are:

1. my process checker wont work (it doesn't enable close button when process there)
2. any of process kill have doesn't work (those ones i've made comment in code anyways)

well after looking @ on different angle found idea kill via command prompt... , after reading lot on net how found answer make work...

public class form1  private sub form1_load(byval sender system.object, byval e system.eventargs) handles mybase.load     dim working_area rectangle = systeminformation.workingarea     dim neww integer = working_area.left + working_area.width - me.width     dim newh integer = working_area.top + working_area.height - me.height     me.location = new point(neww, newh)     timer_processcheck.start() end sub  private sub button_open_click(byval sender system.object, byval e system.eventargs) handles button_open.click     process.start("c:\program files (x86)\bluestacks\hd-startlauncher.exe") end sub  private sub button_close_click(byval sender system.object, byval e system.eventargs) handles button_close.click     timer_processcheck.stop()     process.start("cmd.exe", "/c taskkill /im hd-blockdevice.exe /f")     process.start("cmd.exe", "/c taskkill /im hd-agent.exe /f")     process.start("cmd.exe", "/c taskkill /im hd-logrotatorservice.exe /f")     process.start("cmd.exe", "/c taskkill /im hd-updaterservice.exe /f")     me.close() end sub  private sub timer_processcheck_tick(byval sender system.object, byval e system.eventargs) handles timer_processcheck.tick     dim oprocess new process()     dim ostartinfo new processstartinfo("tasklist")     ostartinfo.createnowindow = true     ostartinfo.useshellexecute = false     ostartinfo.redirectstandardoutput = true     oprocess.startinfo = ostartinfo     oprocess.start()      dim soutput string     using ostreamreader system.io.streamreader = oprocess.standardoutput         soutput = ostreamreader.readtoend()     end using     if soutput.contains("hd-blockdevice.exe")         button_close.enabled = true     else         button_close.enabled = false     end if end sub  end class