has the clients the dlls on the system?
also, are the dll's correct version?
are you running kxrpc on your DCs?
is it from 4.10 build 99 too?

this just that win9x due to lack of networking support needs these files.

also, as you said you have got the latest kix-version, but verify that it is not 4.10 build 98 but build 99

build 98 had macro issue in it.

cheers,
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