# Create a file for each plugin instance **URL:** \ **Category:** Audio Plugins\ **Created:** [July 3, 2017, 9:27am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169 "2017-07-03T09:27:53Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![jouetpas1u](https://avatars.discourse-cdn.com/v4/letter/j/eada6e/32.png) [@jouetpas1u](https://forum.juce.com/u/jouetpas1u)\ **Post date:** [July 3, 2017, 9:27am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/1 "2017-07-03T09:27:53Z")
Hello, i’m a newbie with Juce and C++. I want to create a text file for each plugin instance that I set. Each file should have a different name. I can do that by creating a static variable which is incremented when audioprocessor constructor is called, but if I launch two plugin host, I will have the same name for my first plugin instance of each host. is there a way to have an access to the PID from the pluginhost or the plugin instance itself (then I’m sure I have an unique name)? or do you have any other idea? Thanks a lot, Léo ---
**Author:** ![daniel](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daniel/32/790_2.png) [@daniel](https://forum.juce.com/u/daniel)\ **Post date:** [July 3, 2017, 9:31am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/2 "2017-07-03T09:31:53Z")
The safest thing might be a [Uuid](https://juce.com/doc/classUuid). HTH ---
**Author:** ![railjonrogut](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/railjonrogut/32/505_2.png) [@railjonrogut](https://forum.juce.com/u/railjonrogut)\ **Post date:** [July 3, 2017, 9:31am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/3 "2017-07-03T09:31:58Z")
Check out this thread: [DefaultAppLogger and multiple instances of plugin](https://forum.juce.com/t/defaultapplogger-and-multiple-instances-of-plugin/13921) for some ideas. Rail ---
**Author:** ![jouetpas1u](https://avatars.discourse-cdn.com/v4/letter/j/eada6e/32.png) [@jouetpas1u](https://forum.juce.com/u/jouetpas1u)\ **Post date:** [July 3, 2017, 9:50am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/4 "2017-07-03T09:50:38Z")
> [@daniel](#): > > The safest thing might be a Uuid. > HTH Thanks, but sorry, I forgot to precise that I need to have access to this ID outside my code and my plugin. thank again for the quick answer ---
**Author:** ![daniel](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daniel/32/790_2.png) [@daniel](https://forum.juce.com/u/daniel)\ **Post date:** [July 3, 2017, 10:52am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/5 "2017-07-03T10:52:00Z")
I see. I would still create an Uuid in the plugin instance, but store it into a [SharedResourcePointer](https://juce.com/doc/classSharedResourcePointer), that @Rail_Jon_Rogut suggested in his thread? Anyway, you will put the pieces together 😉 ---
**Author:** ![yfede](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/yfede/32/506_2.png) [@yfede](https://forum.juce.com/u/yfede)\ **Post date:** [July 3, 2017, 3:38pm UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/6 "2017-07-03T15:38:53Z")
Depends on the degree of “uniqueness” that you need to obtain. Using PID is still not granting you to obtain a unique ID after you restart your computer. If that’s the degree of uniqueness that you need, you can also make use of [`PluginHostType`](https://www.juce.com/doc/classPluginHostType), which will give you the name of the DAW that is running your plug-ins. Combine that with the instance number obtained from your `static` counter, and you should have a fairly decent and readable “identifier” for your instances that run concurrently. ---
**Author:** ![pauloesteban](https://avatars.discourse-cdn.com/v4/letter/p/a5b964/32.png) [@pauloesteban](https://forum.juce.com/u/pauloesteban)\ **Post date:** [April 3, 2019, 12:32am UTC](https://forum.juce.com/t/create-a-file-for-each-plugin-instance/23169/7 "2019-04-03T00:32:01Z")
I am working on a similar feature. I am using `Uuid().ToString` in the plugin constructor. I load the plugin on a track in Live and Reaper, but each time I close the plugin window (not unloading/removing the plugin) the uuid changes. How can I retain the uuid for each instance until I unload the plugin?