how can I force the users to use my client?

how can I force the users to use my client? as the title says...

Enable the Checks that are Built into the Server? .-.

but as active? would like?

filelist, md5( in server.ini)

a little more explanation please

Update your filelist.xml and put Use CRC = 1 in Server.ini

use filelist runnable , md5 and filelist check (server.ini) xd

Constant checksums being checked to the server, done on the .code section; checking for execution outside the .code section; etc.