Earlier this afternoon, one of my friends got in touch with “a quick tech question” (it had to be quick as his method of communication was SMS text message):
“…We have a brand new, state of the art pre-press system which, for some reason, is running Windows 2000. It seems that this OS cannot handle file names longer than 27 chars…”
I was sure that this would be an integration issue rather than an operating system restriction as I’ve never come across any such limitation with a Windows NT-based Windows system (leaving aside the question as to why would a state of the art device use an old and unsupported operating system?) – besides which, I was in no mood to give an office full of professional Mac users an excuse to bash Microsoft!
After a very short time spent googling, I found a newsgroup post which explains the issue. It seems that Apple filing protocol (AFP) 2.2, used by Windows Services for Macintosh, has a 31-character limit (presumably 4 of those characters are used by the driveletter:\ portion of the filename and another one somewhere else leaving 27 visible characters). AFP 3.x has no such limitation but, as all modern Macs can use SMB to communicate natively with Windows servers, there seems little point in using Services for Macintosh these days. Looking at the Wikipedia article on AFP, there may also be restrictions on file sizes with AFP and certain client-server combinations.