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mdac 253 and mdac281 creates prob with kb927779

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I have win2k Sp4 with all the patches. I had in the past installed MDAC 2.53 KB927779 ENU without problem.
Recently, I was trying to install "SQLEXPR32_SP3.EXE" (the express version) to upgrade the system and it
complained about not having MDAC v2.81. I thus installed MDAC V2.81 without problem. I ran belarc and
also MBSA v2.1 and it complained that I didn't have KB927779 installed. Thus I tried to install
MDAC v2.81 KB927779 ENU and during the install it said it had a version problem and wouldn't go any further.
Belarc showed the mdac 2.53 KB927779 as an unlock symbol.

Is there any way to get the install of MDAC v2.81 KB927779 to work. I believe MDAC service packs can't be
uninstalled. I tried to run spuinst for the MDAC 253 KB927779 that is in WINT too and it complained about the
version number also.

Edited by mikesw, 18 March 2009 - 05:59 AM.

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I know I'm replying in a topic from 2009 ;)

but indeed there seem to be a serious issue with these MDAC updates. KB927779 for MDAC 2.53 installs newer versions of several files than MDAC 2.81.

There are two cases

1) Install MDAC 2.53's KB927779 and then install MDAC 2.81 + MDAC 2.81's KB927779.

After doing so you'll have the following files in the newest version available which comes from MDAC 2.53's KB927779.
odbcji32.dll	4.0.6307.0
odbcjt32.dll	4.0.6307.0
oddbse32.dll	4.0.6307.0
odexl32.dll	4.0.6307.0
odfox32.dll	4.0.6307.0
odpdx32.dll	4.0.6307.0
odtext32.dll	4.0.6307.0

2) Install only MDAC 2.81 + MDAC 2.81's KB927779.

The following files are in their default version as MDAC 2.81 doesn't update them.
odbcji32.dll	4.0.6200.0
odbcjt32.dll	4.0.6200.0
oddbse32.dll	4.0.6200.0
odexl32.dll	4.0.6200.0
odfox32.dll	4.0.6200.0
odpdx32.dll	4.0.6200.0
odtext32.dll	4.0.6200.0

As you can see, in order to have all of the MDAC related files in their newest versions you have to install both MDAC 2.53's KB927779 and MDAC 2.81 + MDAC 2.81's KB927779.

On the other hand, when slipstreaming (HFSLIP) it's impossible to do it as HFSLIP will copy MDAC 2.53 files (other than these listed above) over 2.81's files. I tried to fix this in Update Rollup 2-v2 (which is being tested at the moment) where I did some manual .DLL date modyfing in order to have MDAC 2.81's files copied over the older ones from MDAC 2.53 (UR2-v2 has MDAC 2.53's KB927779 included). After slipstreaming UR2-v2 and MDAC 2.81 + KB927779 for MDAC 2.81 the older 2.53's files will get overwritten but you will still have the newest versions of files listed in 1).

Anyway, be careful when installing MDAC 2.81 as it is true that it can't be uninstalled :o the updates for MDAC can be but the installer itself doesn't make backups as far as I see.

Edited by tomasz86, 10 July 2011 - 07:19 PM.

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