Upgrading a 32‑bit Presentation Client Connecting to a 64‑bit Application Server

Product Information > Version 7.1 Release Information > Upgrading to JADE Release 7.1 > Upgrading a 32-bit Presentation Client Connecting to a 64-bit Application Server

Upgrading a 32‑bit Presentation Client Connecting to a 64‑bit Application Server

For versions prior to JADE 7.1 and 7.0.11, when a 32‑bit presentation client connects to a 64‑bit application server, the application server upgrades the version of the presentation client but it does not change the 32‑bit to 64‑bit type of the presentation client, because:

The presentation client does not check to see if the operating system on which it is running is 64‑bit‑capable (and it would have to inform the application server about this).
Any support libraries needed by the presentation client (for example, ActiveX control and automation libraries) would also have to be downloaded or already installed in the presentation client.

By default, a 32‑bit presentation client will be upgraded to a version requiring the Microsoft Windows Visual Studio 2013 C++ runtime binaries.

Visual C++ runtimes are always upgraded (that is, the x64 version is installed) as part of the upgrade process.

JADE 7.1 does not support 32‑bit presentation clients using the Visual Studio 2005 C++ runtime binaries that were required by JADE 6.3 releases.

In JADE 7.1, 32‑bit presentation clients can be upgraded to 64-bit, as follows.

The UpgradeRuntimeTo64bit parameter in the [JadeAppServer] section only on each application server, when set to true, causes a 32‑bit client running on a 64‑bit operating system (WoW64) to be upgraded to 64‑bit binaries.

If the client is not running a JADE version that is using Visual Studio 2005 runtime libraries, the JADE thin client download will not revert to a version that uses Visual Studio 2005 runtime libraries.

For more details, see "Upgrading 32‑bit Thin Client Binaries to 64‑bit (NFS 61726)", later in this document.

The UpgradeRuntimeTo64bit parameter takes effect only after the client binaries have downloaded the release that supports this option. This requires two thin client downloads to achieve the 32‑bit to 64‑bit upgrade (that is, one download to update to JADE 7.1, and a second to upgrade to 64‑bit).