List all applications / processes currently running

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'     Solution 1
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Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal wCmd As Long) As Long
Private Declare Function GetParent Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function GetWindowTextLength Lib "user32" Alias "GetWindowTextLengthA" (ByVal hwnd As Long) As Long
Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Const GW_HWNDFIRST = 0
Const GW_HWNDNEXT = 2

Private Sub Command1_Click()
    LoadTaskList
End Sub

Sub LoadTaskList()
    Dim CurrWnd As Long
    Dim Length As Long
    Dim TaskName As String
    Dim Parent As Long
    List1.Clear
    CurrWnd = GetWindow(Form1.hwnd, GW_HWNDFIRST)
    While CurrWnd <> 0
        Parent = GetParent(CurrWnd)
        Length = GetWindowTextLength(CurrWnd)
        TaskName = Space$(Length + 1)
        Length = GetWindowText(CurrWnd, TaskName, Length + 1)
        TaskName = Left$(TaskName, Len(TaskName) - 1)
        
        If Length > 0 Then
            If TaskName <> Me.Caption Then
                List1.AddItem TaskName
            End If
        End If
        CurrWnd = GetWindow(CurrWnd, GW_HWNDNEXT)
        DoEvents
    Wend
End Sub

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'     Solution 2 - from user: Alt255 (Need to give credit to the actual provider!!!)
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Add this one to your tool box. It returns the physical path and filename of any EXE or DLL running on a system.
You 'll need a command button and a list box:

Public Const TH32CS_SNAPPROCESS As Long = 2&amp;
Public Const MAX_PATH As Integer = 260
Public 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 * MAX_PATH
End Type
Public Declare Function CreateToolhelpSnapshot Lib "Kernel32" Alias _
"CreateToolhelp32Snapshot" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
Public Declare Function ProcessFirst Lib "Kernel32" Alias "Process32First" _
() '(ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Public Declare Function ProcessNext Lib "Kernel32" Alias "Process32Next" _
() '(ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Public Declare Sub CloseHandle Lib "Kernel32" (ByVal hPass As Long)

Private Sub Command1_Click()
Dim hSnapShot As Long
Dim uProcess As PROCESSENTRY32
Dim r As Long
hSnapShot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&amp;)
If hSnapShot = 0 Then
    Exit Sub
End If
uProcess.dwSize = Len(uProcess)
r = ProcessFirst(hSnapShot, uProcess)
Do While r
    List1.AddItem uProcess.szExeFile
    r = ProcessNext(hSnapShot, uProcess)
Loop
Call CloseHandle(hSnapShot)
End Sub