ActiveX component behaving badly under .net

[JohannesFleck]

This forum seems to be an excellent place for memory troubles so I try my luck with this question :

I'm using an ActiveX component originally written only for pre .net days that (seems to) cause a memory leak.
All .net related intances (AxHost, etc..) are properly released yet the unmanaged memory keeps growing.

Is there any way to force release unmanaged memory from within .net ? Sounds wrong but I dont know what else to do...

I'm talking about a component called "Dynavis 2" in particular about dyDisplay, PictureDocument, AxDYNAview just in case somebody hear something about it.

thanks!