Recently I've noticed on couple of computers that when users try to open Office files or links (to server path) to office files they get this error "Windows cannot access the specified device path or file", but the files itself open up without problems. This happened on 4 Windows XP computers already with Office 2003 installed.

One one computer it was XLSX file being opened and every time user executed it, it opened up, but the error pops out. On the other hand when I open it directly from Office it works fine, without error. On another 3 computers it was after user pressed on the link to Access DB and it error out, but Access began MSI configuration (since it was first time user logged in to his computer) and in the end it opened up properly. After closing access and doing it again problem disappeared.

Some faulty patch ?

Eset Smart Security 4 is installed.