Member Avatar for LucianAdamson

Hey all! I am trying to write a piece of code that will replace one of my system files on reboot with a new version of that file. Hopefully someone out there has some experience with this as I am stumped at the moment.

Using: VB.NET 2012

Using MoveFileEx

    Public Declare Function MoveFileEx Lib "kernel32" Alias "MoveFileExA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal dwFlags As Integer) As Integer
    Public Const MOVEFILE_DELAY_UNTIL_REBOOT = 4

Code in Form

MoveFileEx("C:\windows\system32\file.name", My.Application.Info.DirectoryPath + "\file.name", 4)

Resource for this API call at MSDS: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365240%28v=vs.85%29.aspx

Im using flag code 4, which is MOVEFILE_DELAY_UNTIL_REBOOT. I have also tried flag code 5 which is MOVEFILE_DELAY_UNTIL_REBOOT and MOVEFILE_REPLACE_EXISTING to no success.

If anyone can shed some light on this, the help would be very much appreciated.

Thank you in advance :)

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Member Avatar for LucianAdamson

If anyone is familiar with Se7en File Replacer, pretty much the same thing im trying to do.

Member Avatar for LucianAdamson

Ok, not getting any responses and I think it may be due to the complexity of preserving permissions and policies for system files.. dont worry, I have that covered. There was actually a pretty good tutorial on this in the sample section of Visual Studio that connects to MSDN. I just can't figure out why MoveFileEx isn't doing what its suppose to do. I will double check and see if it works on a non-system directory tonight.

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