One possible cause is mentioned in http://www.kbalertz.com/Feedback_320108.aspx
It says some application installed XP versions of some libraries. The mentioned article on the mskb http://support.microsoft.com/?kbid=290887 lets you download the vbsetup that contains the right versions. I didn't check all of this.
Searching for "incompatible RPC stub" on google gives much more hits. This is just one that looked interesting.
Hope this helps.
Kees
I am receiving periodic error messages, headed either "VBScript" or "Internet Explorer Script Error". They both say the error is "Incompatible version of the RPC stub." They both specify a line number for the error, but the line numbers in the two messages are different. Both also cite a URL that begins "mcp://C:\ ...", but the VBScript message puts the path in a sub folder of Program Files and the Internet Explorer message puts it in the folder WINDOWS\TEMP\MCU80A3.TMP\.
The first message comes up when I try to access McAfee Security Center, making it impossible to use it (although each of the individual McAfee programs are running properly). The second message comes up during certain operations involving Internet Explorer.
Any suggestions on what might be going on ... or what to do about it?

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