>Ed:
>
>These users are running under WIN 98. I have SP3 installed, but I'm not sure if I created this set up rountine, using it.
>

Installing SP3 by itself on your development system won't fix any of the original Setup Wizard issues; you need to recreate the distribution disk set.

>I've only had one call for this problem, and the only way I was able to fix it was by deleting these files and re-running setup. Some of the files the operating system would not let me delete. This made me real nervous!
>

It should; some of these files are core elements of the operating system, and a wrong version or incorrect installation can toast the whole system. DO NOT DELETE SHARED COMPONENTS BY HAND.

>Now, others are calling saying their apps won't run after the new computer was installed. Do I have any other options for fixing this problem aside from deleting these files?
>

I'd generate the new Setup Wizard install under SP3, uninstall the app and reinstall from the disribution disk set. There are tools in Win98 to verify that versions are correct aailable in the System Information applet under Accessories-System Tools.