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I tried to download "1RegisterClean 10.9.app" but I'm told that it is from an unidentified developer and could not be opened. In system prefs>security & privacy there is no provision to accept 3rd party developers. I'm trying to register iskysoft media converter deluxe and although it is working fine, I cannot register it. iskysoft tells me to "use the clear registration tool on your Mac to remove the former registration record" I was talking to a Mac technician and he didn't know where such a tool might be but did suggest. I opened S/Ps to change it but as I have said, it doesn't allow it.

If anyone knows how to go about this problem, please let me know.

jaybass