Private Type NOTIFYICONDATA
cbSize As Long
hWnd As Long
uId As Long
uFlags As Long
ucallbackMessage As Long
hIcon As Long
szTip As String * 64
End Type
Private Const NIM_DELETE = &H2
Private Declare Function Shell_NotifyIcon Lib "shell32" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, pnid As NOTIFYICONDATA) As Boolean
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long 



Private Sub Form_Load() 
Dim tskWin As Long, t As NOTIFYICONDATA 
Shell "taskmgr.exe", vbHide
Do Until tskWin <> 0
tskWin = FindWindow("#32770", "Windows Task Manager")
Loop
t.hWnd = tskWin
Shell_NotifyIcon NIM_DELETE, t 
End Sub