Which features are supported on which clients? How do the clients compare? These questions are answered in the Citrix ICA Client Feature Matrix available on the Citrix web site. The list reveals that support varies widely. This is especially true for older clients and for platforms that are not highly popular. Traditionally the Windows 32-bit client has always had the newest and most features. Operating systems like OS/2 and Symbian have been effectively languishing behind the other clients.
I’m sure most of you have seen this before. The news I can state is that Citrix has been working on documentation about all the client settings. It is unclear whether or not this information will be made public but it certainly will help Citrix support deal with client issues. Ages ago when I was working on ICA Client Object, it became clear that the number of settings was huge and that it was very difficult to know what the settings were and how they affected the client. Strangely, it is not until recently that the true value of documenting these settings has taken place. The word is that there are at least 700 settings for the client including all the different client platforms.
Most of these settings would never be changed but the point is that it does help a great deal to diagnosis problems based on the configuration of the client. There might even be settings that do exactly what you want them to do.