adding permissions to a file

I have a program that uploads and downloads an excel file to the server. Works great except for 1 snag. Every time a new file gets uploaded the file permissions don't allow me to download it again.

The file needs to add the permissions for Internet Guest Account (SERVER\IUSR_SERVER)) and to allow all.

The only parameter I have is the file location and file name on the server. I know its possible but I'm hoping to get a fairly simple solution to it... I don't suppose there is a method changePermissionsOnNTFSFile(string file_location, string account_name, string input_access)

Thanks.

Visual C#11

Your best bet is probably to spawn cacls.exe. using Process.Start...

cacls filename.ext /e /g SERVER\IUSER_SERVER:F
calcs filename.exe /e /g Everyone:R

Hello Michael, thanks for the reply. I'm still having difficulty because I'm brand spanking new to the whole c# stuff. But here is what I have so far: (directory = @"C:\\projects\\UploadDownloadTest\\Upload" and fileName = "20061204105004_Upload.xls"

private void editFileSecurity(string directory, string fileName)

{

Process myProcess = new Process();

myProcess.StartInfo.WorkingDirectory = directory;

myProcess.StartInfo.FileName = fileName;

}

I need to find a way now to put in your line of code, perhaps somthing like:

myProcess.StartInfo.Arguments = "/C cacls "+directory+"\\"+fileName+"";
myProcess.Start() ;

PS, I suck at using this text editor - sorry tried to make it clear

Well fileName would be the file you want to start, so you'd want to actually use "cmd" for the StartInfo.FileName, you also need to add a "/g" option to the arguments to actually grant the read access to everyone. You'll also want to add "/e" so you edit the permissions instead of overwritting them, so it should look more like this:

private void editFileSecurity(string directory, string fileName)

{

Process myProcess = new Process();

myProcess.StartInfo.WorkingDirectory = directory;

myProcess.StartInfo.FileName = "cmd";

myProcess.StartInfo.Arguments = "/c cacls "+ directory+"\\"+fileName + " /e /g Everyone:R ";

myProcess.Start();

}