I have added a protocol in the ns-allinone-2.1b7a package. After making changes in makefile and make depend, make gives following error *** tclAppInit.o: In function `Tcl_AppInit': tclAppInit.o(.text+0x12a): undefined reference to `et_ns_ptypes' ************ This does not seem to be anyway related with my code. Can somone help me in fixing up the problem. Shailendra