Very Computer

> Data access through ADO (using #import "c:\program files\common
> files\system\ado\msado15.dll" \)compiled on system with ADO 2.1SP2
> worked fine on similar systems with 2.x and those with 2.5.  Upgraded
> development system to 2.5 and now any system without 2.5 dies with
> an "unknown error".  Please let me know if you have any further
insight
> and I will do the same.  Upgrading the client to MDAC 2.5 solves the
> problem but we would like to avoid requiring this 10mb DL and install.
> Since 2.1 worked on both it is definately possible.  The kicker is
that
> SP4 for VC++ requires MDAC 2.5 so going back is not an option.

> Dave

> Sent via Deja.com http://www.deja.com/
> Before you buy.

> You probably do something like this:

> ADODB::_ConnectionPtr pConn;
> pConn.CreateInstance(__uuidof(ADODB::_Connection));

> This call to CreateInstance creates an instance (duh!) of an ADO
> Connection object of the highest version number of the _compiler
> machine_.

> To rectify, write something like this instead:

> ADODB::Connection15Ptr pConn;
> pConn.CreateInstance(__uuidof(ADODB::Connection15));

> ,where "15" stands f?r ADO 1.5. You can put 20, 21 or 25 there
instead,
> I think.

> / Anders

> > Data access through ADO (using #import "c:\program files\common
> > files\system\ado\msado15.dll" \)compiled on system with ADO 2.1SP2
> > worked fine on similar systems with 2.x and those with 2.5.
Upgraded
> > development system to 2.5 and now any system without 2.5 dies with
> > an "unknown error".  Please let me know if you have any further
> insight
> > and I will do the same.  Upgrading the client to MDAC 2.5 solves the
> > problem but we would like to avoid requiring this 10mb DL and
install.
> > Since 2.1 worked on both it is definately possible.  The kicker is
> that
> > SP4 for VC++ requires MDAC 2.5 so going back is not an option.

> > Dave

> > Sent via Deja.com http://www.deja.com/
> > Before you buy.

> --
> Anders Tornblad, Kajitsu Consulting
> GIS, Microsoft, Web, and more...

> Sent via Deja.com http://www.deja.com/
> Before you buy.