FAQ - Avaluate/MultipleRobloxInstances GitHub Wiki

How many accounts can be used?

In theory, an infinite amount of Roblox instances can be opened. In practice, this depends on how many Roblox processes a computer can handle.

Can the same Roblox account be used in two different windows?

No. Only one Roblox account can be opened at a time.

Can this application result in Roblox moderation?

This is not explicitly against the Roblox Terms of Service. Applications such as Bloxstrap had similar functionality.

Bloxstrap removed the multiple Roblox instances feature due to fears people were using it to farm and well as their implementation of multiple Roblox instances being a "hit or miss".

What OSes does this run on?

Windows only.

How this work?

In essence the application locks the Roblox process. Two locks are made to try and ensure better success:

new Mutex(true, "ROBLOX_singletonMutex");
new Mutex(true, "ROBLOX_singletonEvent");

To fix Error 773 related to teleports, Voidstrap makes RobloxCookies.dat, found in LocalStorage of the Roblox folder, write-only. See this.

Similar behaviour can be achieved by locking RobloxCookies.dat, in a single line of code:

new FileStream(System.IO.Path.Combine(RobloxPath, "LocalStorage", "RobloxCookies.dat"), FileMode.Open, FileAccess.Read, FileShare.None);