When download a .cab file from Internet Explorer it renames the file from .cab to .tsk (The TSK file type is primarily associated with ‘Skins (Themes) for Pocket PC PDAs’, these generally are Microsoft .CAB files). Failing to install and open Today screen themes.
It’s a bug of HTC Touch 2 device.
When you start downloading the file in the request form where you can select the Open file after download checkbox tap Menu > Save as… change Type from tsk to all files then add .cab extension to the filename then click Save button.
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