Declare Function aht_apiGetProfileSection Lib "kernel32" Alias "GetProfileSectionA" (ByVal lpAppName As String, ByVal lpReturnedString As String, ByVal nSize As Long) As Long
Declare Function aht_apiWriteProfileString Lib "kernel32" Alias "WriteProfileStringA" (ByVal strAppName As String, ByVal strKeyName As String, ByVal strValue As String) As Integer
Const MAX_VEL = 255
Const MAX_SEK = 2048

To tvoje pokusaj rijesiti na sledeci nacin:

    #if Win64 then
       Declare PtrSafe aht_apiGetProfileSection Lib "kernel32" Alias "GetProfileSectionA" (ByVal lpAppName As String, ByVal lpReturnedString As String, ByVal nSize As Long) As Long
       Declare PtrSafe  aht_apiWriteProfileString Lib "kernel32" Alias "WriteProfileStringA" (ByVal strAppName As String, ByVal strKeyName As String, ByVal strValue As String) As Integer
    #else
      Declare Function aht_apiGetProfileSection Lib "kernel32" Alias "GetProfileSectionA" (ByVal lpAppName As String, ByVal lpReturnedString As String, ByVal nSize As Long) As Long
      Declare Function aht_apiWriteProfileString Lib "kernel32" Alias "WriteProfileStringA" (ByVal strAppName As String, ByVal strKeyName As String, ByVal strValue As String) As Integer
    #end if

Const MAX_VEL = 255
Const MAX_SEK = 2048