Most of the tools that you can download off www.CiscoUnityTools.com can be installed via WTS no problem - a few, however, cannot be _run_ via WTS after installing them. Anything that interacts with a WAV driver wont fly (i.e. the speed set, volume adjustment and codec adjustment tools) - these will detect automatically that they are being run in a WTS session and will bark at you.
The vast majority, however, will run fine. Testing our tools out of my group includes a standard check for WTS functionality - you should be fine.
I can't think of any tools that can't be installed via WTS. There may have been issues with older tools in older versions of Unity, and some of the stuff that manipulates audio can have issues when running, but I can't think of a single tool that can't be installed via WTS.
Installation of the tools via TS should be ok. I can't think of any tools would have problems installing via TS assuming the user has the right permissions. Running of the tools via TS is another story and it varies by tool, the help files for the tools should say if the tool needs to be run from the console.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.