You may need to contact Dexis support.
I looked through the sys requirement for there software and only the DEXIS 9 software says anything about a Server, or so it seems. And then it says it is Recommended, Not Required.
But I find the install software needing access to a server share for the software to be installed a little odd. Even in their spec sheet it says that a server is "recommended", Not Needed, for installations having more then 5 Imaging Workstations. http://www.dexis.com/UserFiles/File/...quirements.pdf
So it is really odd the installer would want access to a server network share.
Good Luck with this.