Well, it was renewal time, so I paid up, and may as well download the latest version while I'm at it, right? (Oh dear). I'm on Win98 and selected "clean install". The install failed with a message about not being able to close some file related to VSMON, (sorry I don't remember the detail here). Came to re-boot, and got Missing DLL error, SSLEAY32.DLL. Tried a few more installs/re-boots, no good. Tried to restore the situation by re-installing ZAP previous version, (V5.5), no good, still get DLL error. Downloaded missing DLL, cured DLL error but still can't install any version of ZAP! ZAP V6 install gives "can't log into VSMON" error message. ZAP V5.5 install just stops without any message. Other things I tried: Deleting the ZoneLabs directory. Removing VSMON from the startup list. Re-downloaded ZAP V6 installation file. I had a quick look in this forum and didn't see any similar looking posts so I would be very grateful if anyone knows what is going wrong here.