Sorry, I simply forgot it when wrote the html page - I am writing a note about it only now, after getting Eric's report. Giving "abld build armi urel" as I specified on my site, gives out the error "Failed to write UIDs, * RCOMP failed - error" message. The RCOMP.EXE (resource compiler) expects in its PATH the UIDCRC.EXE utility; it must be on the Wine's standard path. The quickest and dirtiest solution I found was copying UIDCRC.EXE in the current directory. If not present, you will see an "*RCOMP failed - failed to write UIDs" error while compiling with "abld build armi urel". So, before giving out "abld build armi urel" command, copy the "uidcrc.exe" from the $EPOCROOT/epoc32/tools directory to the current directory (HelloWorld). alf