Cache while downloading.

[Dragooon]

Ok while downloading from TP DL manager it caches some stuff. Which I don't want.
I was making some permission stuff and if You download a file as a guest it caches the error page, when it try to download as a user it shows me the same page unless, I clear the cache.
Is there a way to pass it? Or shall I use a sub-URL method?

[Nokonium]

Translation please ...

[Dragooon]

When someone downloads anything from any Tinyportal Download Manager, It caches it.
Now I was adding a secondary permission so that if someone is not allowed, on the same URL he gets a error message.
So If the first time someone gets the error message it gets cache. Now if someone second time from the same comp tries it, It gets the error message if he has not cleared his cache.

So is there any way to solve this thing?