NCP uses the libsmbsharemodes.so library file to support the cross-protocol file locking capability that coordinates access to files by NCP users and CIFS users. NCP updates that are released through the OES update channels and in support packs include the libsmbsharemodes.so library file that you need for NCP. Patches for Linux Samba are also released separately through the SUSE Linux Enterprise Server update channels. For 64-bit OES 2 Linux and later, there is a risk of breaking the cross-protocol locks functionality if the libsmbsharemodes.so library file is modified from the version released with NCP.