Question

I want to programmatically find out if my application is running from a network drive. What is the simplest way of doing that? It should support both UNC paths (\\127.0.0.1\d$) and mapped network drives (Z:).

Answer 1

This is for mapped drive case. You can use the DriveInfo class to find out whether drive a is a network drive or not.

DriveInfo info = new DriveInfo("Z");
if (info.DriveType == DriveType.Network)
{
    // Running from network
}

Complete method and Sample Code.

public static bool IsRunningFromNetwork(string rootPath)
{
    try
    {
        System.IO.DriveInfo info = new DriveInfo(rootPath);
        if (info.DriveType == DriveType.Network)
        {
            return true;
        }
        return false;
    }
    catch
    {
        try
        {
            Uri uri = new Uri(rootPath);
            return uri.IsUnc;
        }
        catch
        {
            return false;
        }
    }
}

static void Main(string[] args) 
{
    Console.WriteLine(IsRunningFromNetwork(System.IO.Path.GetPathRoot(AppDomain.CurrentDomain.BaseDirectory)));    }