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MDAC

Has anyone else come across this?

I have an application originally developed in XP Pro / A2003 which is
deployed to two client machines running the same (ie full version of
Access).

I upgraded to Vista (yeah, I know) and A2007, converted my app, and
have been testing it on a machine running XP with the A2007 runtime
installed.

Amongst the various problems I've had was a referencing error that
(most obviously) resulted in the system not being able to show the
Date and Time variables. Turned out the missing reference was to
MSADOX.DLL (ADO Extensions...), which I understand to be something to
do with MDAC.

Here's the catch; Vista does not use MDAC, but instead uses something
called WDAC. However, this file still has the same name, ie
MSADOX.DLL, so I cannot register the "old" XP MSADOX.DLL on my machine
to correct the reference error.

Any ideas?

Reg

Oct 29 '07 #1
2 3446
On Oct 29, 3:52 am, "Reg (Lincolnshire)" <r...@solutionj.co.ukwrote:
Has anyone else come across this?

I have an application originally developed in XP Pro / A2003 which is
deployed to two client machines running the same (ie full version of
Access).

I upgraded to Vista (yeah, I know) and A2007, converted my app, and
have been testing it on a machine running XP with the A2007 runtime
installed.

Amongst the various problems I've had was a referencing error that
(most obviously) resulted in the system not being able to show the
Date and Time variables. Turned out the missing reference was to
MSADOX.DLL (ADO Extensions...), which I understand to be something to
do with MDAC.

Here's the catch; Vista does not use MDAC, but instead uses something
called WDAC. However, this file still has the same name, ie
MSADOX.DLL, so I cannot register the "old" XP MSADOX.DLL on my machine
to correct the reference error.

Any ideas?

Reg
1. What happens if you reference the new file?
or
2. With a little work, using some tlb creation utilities available on
the web, you may be able to create an MSADOXnn.tlb file from
MSADOXnn.dll. An MSADOX25.tlb is available for download. A reference
to this file instead of the MSADOXnn.dll may avoid the confusion.
or
3. Of course, you could do what I would do. Many, perhaps all ADOX
calls are redundant; they can be duplicated with simple ADO/SQL calls.
Depending on your use of ADOX, it's quite likely that you can rewrite
these calls, and your reference to ADOX will be unnecessary and can be
removed.

Oct 29 '07 #2
On Oct 29, 9:51 am, lyle <lyle.fairfi...@gmail.comwrote:
On Oct 29, 3:52 am, "Reg (Lincolnshire)" <r...@solutionj.co.ukwrote:


Has anyone else come across this?
I have an application originally developed in XP Pro / A2003 which is
deployed to two client machines running the same (ie full version of
Access).
I upgraded to Vista (yeah, I know) and A2007, converted my app, and
have been testing it on a machine running XP with the A2007 runtime
installed.
Amongst the various problems I've had was a referencing error that
(most obviously) resulted in the system not being able to show the
Date and Time variables. Turned out the missing reference was to
MSADOX.DLL (ADO Extensions...), which I understand to be something to
do with MDAC.
Here's the catch; Vista does not use MDAC, but instead uses something
called WDAC. However, this file still has the same name, ie
MSADOX.DLL, so I cannot register the "old" XP MSADOX.DLL on my machine
to correct the reference error.
Any ideas?
Reg

1. What happens if you reference the new file?
or
2. With a little work, using some tlb creation utilities available on
the web, you may be able to create an MSADOXnn.tlb file from
MSADOXnn.dll. An MSADOX25.tlb is available for download. A reference
to this file instead of the MSADOXnn.dll may avoid the confusion.
or
3. Of course, you could do what I would do. Many, perhaps all ADOX
calls are redundant; they can be duplicated with simple ADO/SQL calls.
Depending on your use of ADOX, it's quite likely that you can rewrite
these calls, and your reference to ADOX will be unnecessary and can be
removed.- Hide quoted text -

- Show quoted text -
Hi Lyle,

Thanks for that. I'm taking the latter route. I've decided references
are to be avoided at all costs!

Reg

Oct 30 '07 #3

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