1) Copy rdbss.sys and mrxsmb.sys to system32\drivers directory. 2) copy the .ini/.bat files to the directory of your choice from the appropriate sub directory SUR/CAIRO. 3) run setup.bat -- This initializes the registry. 3) Reboot the system. The system will come up with the new rdr. The new rdr will be active as long as it is correctly loaded / unloaded. If the new redirector fails the workstation service switches over to the old redirector. In order to switch over to the new redirector run the following command and reboot regini rdr2.ini NOTE: Under Cairo the reboot is required because DFS keeps the Redirector device open. Under SUR this in conjunction with net start/stop rdr toggles between the old and the new one. 4) For CAIRO in order to switch to the old redirector use the following commands .. regini rdr.ini regini rdrdfs.ini and reboot. Similarly for the new redirector use the following commands regini rdr2.ini regini rdr2dfs.ini and reboot.