The current x64 version of ICM cannot use the ArcEngine / ArcGIS Desktop funcionality, in contrast to previous x32 bit versions of ICM. Since only x64 bit version is now supported, this feature cannot be used. It is one of the most important features when rendering background basemaps / aerials, with many organisations using ArcGIS Servers to publish open data.
The current work around for WMS layers are not quick and provide a difficult interim process to manage, particularly for basemaps.
Please consider this as an urgent idea to implement in the x64 version.
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