Question

Okay — we have an interesting problem.

Some background:

1. Our main application uses Indy 10. However, we take the Indy 10
   source and fix bugs in it, recompile, and install our own set of Indy
   components.

2. We are migrating to Delphi XE and want to start using DataSnap.

3. DataSnap requires the “official, shipping” version of Indy which is
   incompatible with our customized version of Indy.

4. Our DataSnap servers will be separate applications, but since we
   have our own Indy installed in the IDE, we can’t “cross the streams”.

Okay, therefore, we are unable to use Delphi XE’s DataSnap out of the
box because of this compatibility issue.

So my questions is this:

Is it possible to recompile the DataSnap packages in Delphi XE with a new/different version of Indy?

Your thoughts gratefully accepted.

Answer 1

The common belief is No, that’s not possible due to not all sources being provided by Embarcadero and some of these sources are reliant on the build of Indy as shipped. (Which is extremely frustrating to end users as the version of Indy that ships with Delphi is out of date relatively quickly and sometimes the version selected at the time is not necessarily a very good one.)

See related SO question:
Is it possible to use Indy 10.5.8.0 in Delphi XE and DataSnap?

Also see the Indy project page:
http://www.indyproject.org/Sockets/Docs/indy10Installation.de.aspx
which states:

Note: In D/CB/RAD 2009+, DataSnap uses
Indy 10 internally. Installing a new
version of Indy will render DataSnap
unusable, as it will not be able to
load the Indy packages anymore.
DataSnap is compiled against the Indy
packages that ship with the IDE, and
DataSnap cannot be recompiled by end
users. If you need to use DataSnap,
then you will need to maintain the
original Indy 10 packages for use in
DataSnap projects.

It’s been said that the next version should hopefully allow for easier updates of Indy.