static extern bool MoveFileEx(string lpExistingFileName, string lpNewFileName,

Declare Unicode Function MoveFileEx Lib "kernel32.dll" Alias "MoveFileExW" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal dwFlags As MoveFileFlags) As Integer

MoveFileEx(dstFile, null, MoveFileFlags.MOVEFILE_DELAY_UNTIL_REBOOT);

MoveFileEx(srcFile, dstFile, MoveFileFlags.MOVEFILE_DELAY_UNTIL_REBOOT);