I think I have found the problem..
Is the new wine version that we have included from OS 4.0, that have the memory leak issue. http://www.winehq.org/announce/1.1.42
here seem that they have fixed.
I will ask 64studio to compile and make a debian package for testing.
The fact, how zmago told before, the much older version of wine support much better the Vsthost and installer.
I have to make some test with new version.