Krealab VoIP Log Toys requires: PRONTO IP PBX (To obtain a free copy of PRONTO IP PBX you can download the trial version: http://www.prontopbx.com/ (English) and http://www.centralinopronto.it/ (Italian). Sleep.exe (IDW tools), to obtain a free copy of sleep.exe go to http://www.microsoft.com and download Windows Server 2003 Resource Kit Tools. You can also try Krealab VLT version 0.2.1.1 (alpha) that contains a GNU version of Sleep.exe.