Extension Manager CS5: The extension is not installed, sometimes.

Question

Hallo you all,
inspired by the breadcrumb thread here in the forum, I searched the corresponding *.mxp application and did a download from here:
http://www.adobe.com/cfusion/exchange/index.cfm?searchfield=breadcrumb&search_exchange=3&s earch_category=-1&search_license=&search_rating=&search_platform=0&search_pubdate=&num=25& startnum=1&event=search&sticky=true&sort=0&rnav_dummy_tmpfield=&Submit=Search
Installing *.mxp applications by using my Extension Manager CS5 hadn't been a problem till now. This time (breadCrumbs1.mxp)  I got this message:
"Die Menüs können nicht aktualisiert werden. Die Erweiterung wird nicht installiert." what means more or less "The menus can not be updated. The extension is not installed".
What's the reason for it? How can I bring the manager to install this mxp extension nevertheless?
A hint would be very grateful.
Hans-G.

Answer 1

Hi John,
thanks for your answer and ... you are right! Your "Outdated version (2003) of the extension incompatible with CS5 is my guess, Hans" took me to the right track.
Problem was, that I gave a hint in this thread: http://forums.adobe.com/message/3228950#3228950 among others exactly to this link you proposed: http://www.kaosweaver.com/extensions/details.php?id=6.
That made me nosy and so I downloaded the both, called "breadCrumbs.mxp" and "breadCrumbs1.mxp" and tried to install with the effects described above.
Perhaps my solution is of general interest:
On my PC there exist some former DW versions fortunately. So I changed the name of the "Adobe Extension Manager CS5" a little bit, and I could outwit CS5 and could install the "breadCrumbs.mxp" with "Adobe Extension Manager CS4" completely unproblematic instead!
Hans-G.
P.S.
The extensions are also working in versions ≤ CS4.