>When using install shield express - Foxpro Limited Edition - I'm experiencing two problems.
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>1. Every time I build a new install, I have to regenerate the GUID/Product ID. If I fail to do this, then it will refuse to install on a machine where the Foxpro app has lready been installed, it want me to uninstall first.

It's limitation of ISX VFP LE. The Upgrade Path feature is avalable in full version only.
BTW, ISX VFP LE that comes with VFP8 has the Upgrade Path feature enabled.

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>2. Some of my data files are marked as Never Overwrite and some are not. However, it seems that data files are never overwritten regardless, I have to get the end user to manually delete some files prior to installation.