Check Which Programs Are Currently Running

'Add a module to your project (In the menu choose Project -> Add Module, Then click Open)
'Add 1 List Box and 1 Command Button to your form.
'Insert this code to the module :

Public Const TH32CS_SNAPPROCESS As Long = 2&
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)

'Insert the following code to your form:

Private Sub Command1_Click()
Dim hSnapShot As Long
Dim uProcess As PROCESSENTRY32
Dim r As Long
hSnapShot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&)
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

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