Try just typing in the URL to your browser and see if that works. The message indicates there's a problem with your shortcut.
http://<servername>:6080/arcgis/manager
Thank you Matt for the answer. This is very helpful.A colleague has provided me a solution for this issue. Right clicking the icon and selecting an appropriate software can do the job:[ATTACH=CONFIG]20213[/ATTACH]Or the default web browser can be set:[ATTACH=CONFIG]20214[/ATTACH], [ATTACH=CONFIG]20215[/ATTACH]BestJamal
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Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine