Thanks for use Crypto Chat 4 Skype ....
For the solution verify:
1) the User account must be Administrator PC account;
2) In the Skype Window appear one alert .... way to ensure that the software accessing Skype is legitimate: you click "ALLOW THIS PROGRAM USE SKYPE) (for help read at link: http://www.cryptochat4.com/skype/help/help_eng.htm )
3) With the Vista SO , occasionally , the Skype program non legitimate Crypto: the fast solution is KILL Crypto (in task manager > Processes > End Processe ...the exe crypto file is "LFCryptoChat4Skype.exe") and restart it from Start>Program> SOFT & Arts (Crypto Chat 4 Skype) > Crypto Chat 4 Skype ;
Pleas test it and tell me if there is anything else I can help with.
Luca Formica - The CryptoChat 4 Skype Team