I found solution in forums:
Actually I needed to add:
php_admin_flag register_globals on
php_admin_flag register_long_arrays on
in it to make it work (OSCommercer)
but when i make empty .htacces files with 2 lines in directory:
i get error:
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, email@example.com
and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.
what i do wrong?
may be i mast create this file in diferent folder or mast add more lines in this file?