1. I always have two partitions on my HDs for the OS, Only one is active at any time. The other is not mounted. I deleted one of these partitions and recreated it, made it the active C: partition and dismounted the other C: partition and then reinstalled the OS from a slip-streamed WinXP Pro SP3 CD into that fresh C: partition. After updating that installation of Win XP Pro I tried the ZAISS installer and it failed. So reinstalling with a fresh Windows install doesn't solve my problem, whatever my problem is.
2. I had also tried it on my second (also Win XP Pro SP3) computer. It failed. I tried downloading it to a Mac and transferring it to my computer. It failed.
3. Lastly, I just now tried downloading and running it on my daughter's Vista laptop. It failed, just as before.
4. I may be the only one experiencing this problem but I am also experiencing it only with the most recent ZAISS downloads (9.1.507, 9.1.512 (German) and 9.1.603) and not my earlier ones.
I am now "officially" puzzled.
I am going to continue trying to find out what is wrong and maybe ZA Tech Support can shed some light on it based on the info I sent them but in the meantime I will have to live with the version of ZAISS tha I have installed, 9.1.008.
Thanks again for all the help.
Just to see what happens, I re-downloaded zaSuiteSetup_91_008_000_en.exe. The first try failed with a "An I/O error occurred while installing a file. This is normally caused by bad installer media or a corrupt installation file." eror message. The second attempt ran just fine. Not sure what this (or any of this) means.