Sorry all.....this was my first time!!! I'll give myself 0/3 and let's start again.

May I rephrase the question as:

What would generate a dialogue box with Title=Error Starting Program and Message=A required .DLL file, Z:\KIX32.EXE, was not found.
The dialogue box contains the yellow warning sign.

The script is running in the first place so it must no where KIX32.EXE is, do I presume that some new function in 4.02 requires a DLL I don't have.

As mentioned I tried replacing IPHLPAPI.DLL from Mobile95.cab of IE55 to no avail