Jeff I initially left out detail about OS being Win2k SP4. Is your recommendation still the same? Any best practices for installing MDAC besides the usual such as 'change user /install' mode. -----Original Message----- From: Jeff Pitsch [mailto:jepitsch@xxxxxxxxx] Sent: Friday, December 16, 2005 11:58 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Upgrading version of MDAC on Citrix XP FR3 Data Sore server from 2.53 to 2.7 which an application running on farm requires Actually I'm surprised you weren't having problems with the version you have now. Most definately upgdate MDAC. think about 2.8 as well. Jeff Pitsch On 12/16/05, Steve Parr <sparr@xxxxxxxxxxxxx <mailto:sparr@xxxxxxxxxxxxx> > wrote: I know Data Store is sensitive to MDAC version. Is upgrading to 2.7 ok as far as Citrix Data Store is concerned? Anything to look out for or can I just install without too much worry? Thanks. Steve Parr Metroland Printing, Publishing and Distributing Ltd.