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You could setup/host an internal instant messaging client. &nbsp;Look for open source IM.
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try something like <a href="http://messenger.softros.com" rel="ugc">http://messenger.softros.com</a>&nbsp;but i don't think it supports Linux
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I am looking for a small client app that can be installed on client PC's (Linux and Mac optionally) that will popup when an administrator sends a message to them. &nbsp;The Microsoft methods are very much prone to failure and I don't want to use NET SEND or MSG.<br />
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Having trouble finding a nice utility that can handle this.
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I am looking for a small client app that can be installed on client PC's (Linux and Mac optionally) that will popup when an administrator sends a message to them.  The Microsoft methods are very much prone to failure and I don't want to use NET SEND or MSG.

Having trouble finding a nice utility that can handle this.

Replacement or FREE client that can be installed on network pc's to receive admin messages

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.