I'm managing our company's collection of recorded webinars which currently exist as plain old wmv files served by IIS. Virtually all users are playing from a modern generation of Windows Media Player. File size is typically close to 100mg and most users will prefer to start at the beginning and stick with the production until play is finished without having downloaded the full file.
Given those facts, this question:
Some users report problems (or complete inability to) force the playhead to jump ahead in a given production. Which factors impact that ability; LAN settings within that user's organization, player version, how my .wvm is encoded, how my IIS is configured, other?