Listar los procesos

Private Declare Function CreateToolhelpSnapshot Lib "Kernel32" Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, ByVallProcessID As Long) As Long

Private Declare Function ProcessFirst Lib "Kernel32" Alias "Process32First" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long

Private Declare Function ProcessNext Lib "Kernel32" Alias "Process32Next" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long

Private Declare Sub CloseHandle Lib "Kernel32" (ByVal hPass As Long)

Private Type PROCESSENTRY32
dwSize As Long
cntUsage As Long
th32ProcessID As Long
th32DefaultHeapID As Long
th32ModuleID As Long
cntThreads As Long
th32ParentProcessID As Long
pcPriClassBase As Long
dwFlags As Long
szExeFile As String * 260
End Type


Private Sub Form_Load()
Dim hSnapShot As Long
Dim uProceso As PROCESSENTRY32
Dim res As Long

hSnapShot = CreateToolhelpSnapshot(2&, 0&)
If hSnapShot <> 0 Then
uProceso.dwSize = Len(uProceso)
res = ProcessFirst(hSnapShot, uProceso)
Do While res
List1.AddItem Left$(uProceso.szExeFile, InStr(uProceso.szExeFile, Chr$(0)) - 1)
res = ProcessNext(hSnapShot, uProceso)
Loop
Call CloseHandle(hSnapShot)
End If
End Sub