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Run Your Program At Startup

'The following code will run your program at startup, without make a shortcut in
'startup folder. This code is actually put your program in the registery in
'Software\Microsoft\Windows\CurrentVersion\Run.
'To make your program run at startup only once (only at the first time you startup the
'computer after running this code) You should put your program at
'Software\Microsoft\Windows\CurrentVersion\RunOnce. To do so replace the
'two appearance of '...CurrentVersion\Run' in this code with '...CurrentVersion\RunOnce'
'Add a module to your project (In the menu choose Project -> Add Module, Then click Open)
'Add 2 Command Buttons To your Form.
'Press the first button to make your program run at startup. Press the second to delete it
'from running at startup.
'Insert the following code to your module :

Public Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type

Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" _
(ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, _
ByVal samDesired As Long, phkResult As Long) As Long
Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Declare Function RegQueryValueEx Lib "advapi32" Alias "RegQueryValueExA" _
(ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As _
Long, ByRef lpType As Long, ByVal lpData As String, ByRef lpcbData As Long) As Long
Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal _
hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal _
dwType As Long, ByVal lpData As String, ByVal cbData As Long) As Long
Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" _
(ByVal hKey As Long, ByVal lpValueName As String) As Long
Public Enum T_KeyClasses
HKEY_CLASSES_ROOT = &H80000000
HKEY_CURRENT_CONFIG = &H80000005
HKEY_CURRENT_USER = &H80000001
HKEY_LOCAL_MACHINE = &H80000002
HKEY_USERS = &H80000003
End Enum

Private Const SYNCHRONIZE = &H100000
Private Const STANDARD_RIGHTS_ALL = &H1F0000
Private Const KEY_QUERY_VALUE = &H1
Private Const KEY_SET_VALUE = &H2
Private Const KEY_CREATE_LINK = &H20
Private Const KEY_CREATE_SUB_KEY = &H4
Private Const KEY_ENUMERATE_SUB_KEYS = &H8
Private Const KEY_EVENT = &H1
Private Const KEY_NOTIFY = &H10
Private Const READ_CONTROL = &H20000
Private Const STANDARD_RIGHTS_READ = (READ_CONTROL)
Private Const STANDARD_RIGHTS_WRITE = (READ_CONTROL)
Private Const KEY_ALL_ACCESS = ((STANDARD_RIGHTS_ALL Or _
KEY_QUERY_VALUE Or KEY_SET_VALUE Or KEY_CREATE_SUB_KEY _
Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY Or KEY_CREATE_LINK) _
And (Not SYNCHRONIZE))
Private Const KEY_READ = ((STANDARD_RIGHTS_READ Or _
KEY_QUERY_VALUE Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY) _
And (Not SYNCHRONIZE))
Private Const KEY_EXECUTE = (KEY_READ)
Private Const KEY_WRITE = ((STANDARD_RIGHTS_WRITE Or _
KEY_SET_VALUE Or KEY_CREATE_SUB_KEY) And (Not SYNCHRONIZE))
Private Const REG_BINARY = 3
Private Const REG_CREATED_NEW_KEY = &H1
Private Const REG_DWORD = 4
Private Const REG_DWORD_BIG_ENDIAN = 5
Private Const REG_DWORD_LITTLE_ENDIAN = 4
Private Const REG_EXPAND_SZ = 2
Private Const REG_FULL_RESOURCE_DESCRIPTOR = 9
Private Const REG_LINK = 6
Private Const REG_MULTI_SZ = 7
Private Const REG_NONE = 0
Private Const REG_SZ = 1
Private Const REG_NOTIFY_CHANGE_ATTRIBUTES = &H2
Private Const REG_NOTIFY_CHANGE_LAST_SET = &H4
Private Const REG_NOTIFY_CHANGE_NAME = &H1
Private Const REG_NOTIFY_CHANGE_SECURITY = &H8
Private Const REG_OPTION_BACKUP_RESTORE = 4
Private Const REG_OPTION_CREATE_LINK = 2
Private Const REG_OPTION_NON_VOLATILE = 0
Private Const REG_OPTION_RESERVED = 0
Private Const REG_OPTION_VOLATILE = 1
Private Const REG_LEGAL_CHANGE_FILTER = (REG_NOTIFY_CHANGE_NAME _
Or REG_NOTIFY_CHANGE_ATTRIBUTES Or _
REG_NOTIFY_CHANGE_LAST_SET Or _
REG_NOTIFY_CHANGE_SECURITY)
Private Const REG_LEGAL_OPTION = (REG_OPTION_RESERVED Or _
REG_OPTION_NON_VOLATILE Or REG_OPTION_VOLATILE Or _
REG_OPTION_CREATE_LINK Or REG_OPTION_BACKUP_RESTORE)

Public Sub DeleteValue(rClass As T_KeyClasses, Path As String, sKey As String)
Dim hKey As Long
Dim res As Long
res = RegOpenKeyEx(rClass, Path, 0, KEY_ALL_ACCESS, hKey)
res = RegDeleteValue(hKey, sKey)
RegCloseKey hKey
End Sub

Public Function SetRegValue(KeyRoot As T_KeyClasses, Path As String, sKey As _
String, NewValue As String) As Boolean
Dim hKey As Long
Dim KeyValType As Long
Dim KeyValSize As Long
Dim KeyVal As String
Dim tmpVal As String
Dim res As Long
Dim i As Integer
Dim x As Long
res = RegOpenKeyEx(KeyRoot, Path, 0, KEY_ALL_ACCESS, hKey)
If res <> 0 Then GoTo Errore
tmpVal = String(1024, 0)
KeyValSize = 1024
res = RegQueryValueEx(hKey, sKey, 0, KeyValType, tmpVal, KeyValSize)
Select Case res
Case 2
KeyValType = REG_SZ
Case Is <> 0
GoTo Errore
End Select
Select Case KeyValType
Case REG_SZ
tmpVal = NewValue
Case REG_DWORD
x = Val(NewValue)
tmpVal = ""
For i = 0 To 3
tmpVal = tmpVal & Chr(x Mod 256)
x = x \ 256
Next
End Select
KeyValSize = Len(tmpVal)
res = RegSetValueEx(hKey, sKey, 0, KeyValType, tmpVal, KeyValSize)
If res <> 0 Then GoTo Errore
SetRegValue = True
RegCloseKey hKey
Exit Function
Errore:
SetRegValue = False
RegCloseKey hKey
End Function

'Insert the following code to your form:

Private Sub Command1_Click()
'Replace the two 'NotePad' below with your application name, and the two
'c:\windows\notepad.exe' below with your application file
.
SetRegValue HKEY_LOCAL_MACHINE, _
"Software\Microsoft\Windows\CurrentVersion\Run", "NotePad", "c:\windows\notepad.exe"
End Sub

Private Sub Command2_Click()
DeleteValue HKEY_LOCAL_MACHINE, _
"Software\Microsoft\Windows\CurrentVersion\Run", "NotePad"
End Sub

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