Private Declare Function FreeLibrary Lib "kernel32" (ByVal hLibModule As Long) As Long
Private Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Long
Private Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, ByVal lpProcName As String) As Long
Private Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal Msg As Any, ByVal wParam As Any, ByVal lParam As Any) As Long
Private Const ERROR_SUCCESS = &H0
Private Const ERROR_AHHHHHH = &HF

Public Function RegisterServer(hwnd As Long, DllServerPath As String, bRegister As Boolean) As Boolean
    On Error Resume Next
    
    Dim lb As Long, pa As Long
    
    lb = LoadLibrary(DllServerPath)
    If bRegister Then
        pa = GetProcAddress(lb, "DllRegisterServer")
    Else
        pa = GetProcAddress(lb, "DllUnregisterServer")
    End If
    
    If CallWindowProc(pa, hwnd, ByVal 0&, ByVal 0&, ByVal 0&) = ERROR_SUCCESS Then
        RegisterServer = True
    Else
        RegisterServer = False
    End If
    FreeLibrary lb
End Function