installing in subfolder

[DrByte]

is not the same... installing works fine but after entering the physical path and the ssl (what the installer sees, the defaults) after i press ok... it stops.

Try renaming the /zc_install/.htaccess to htaccess_OFF

and thiat happened on 3 servers. the problem i have is with the instalation of zen cart inside a subfolder of the root. something like http://www.xxx.com/zen.

There should be no problems with installing in a subfolder.