Using C# to get a list of ACLs for Servers and mapped drives

The production change implementers for our IT group have been tasked with reviewing the security for all of the various objects in our group, primarily to make sure that people who have left our employ or have transferred to other groups no longer have access to our server shares, web directories, sql databases, etc etc. We recently completed the SQL portion and we have a re-usable script that can be run annually (or at whatever frequency we come up with). It worked great and we audited 20 databases across 10 or so servers withing a few minutes.

Now, for the server stuff. I have an application that I wrote in C# using .NET 2.0 that will recursively scan a list of directories and dump the ACLs to a text file. This works excellent. On the local machine. UNC and Mapped paths do not work, I get the following exception message: The process does not possess the 'SeSecurityPrivilege' privilege which is required for this operation.

On this line:

DirectorySecurity DirSec = di.GetAccessControl(AccessControlSections.All);

Where di is a DirectoryInfo object enumerated from a DirectoryInfo[] array.

We are not likely going to be able to be granted the SeSecurityPrivilege privilege. However I don't think this should be necessary. I can open the folder and right click for properties and click the security tab and view it in the GUI. I should be able to access it programmatically as well.

Any thoughts on how I can change this section of code to get the permissions for the targeted folder?

private void CheckSecurity(DirectoryInfo[] DIArray)
{
    foreach (DirectoryInfo di in DIArray)
    {
        DirectorySecurity DirSec = di.GetAccessControl(AccessControlSections.All);
        string sAccessInfo = string.Empty;

        foreach (FileSystemAccessRule FSAR in DirSec.GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount)))
        {
            sAccessInfo += GetAceInformation