Hi There,I installed radar contact after a fully install of WIndows Vista Home Premium 32bit. I also installed fsuipc 3.75.When I in fs2004 create a flightplan and load this plan up in RC, everything goes well. Then I press the "Start RC" button, the RC display shows up in FS. After a few seconds the error message shows up: Runtime Error "75" RadarContact.fsuipc.rc4code, then RC quits. When I relaunch RC and press the Gereral button, and after that i press the little speaker button I get the following error message:Runtime Error "75" RadarContact.rcv4module.atc_ack, the again RC quits. The same error occurs when I press the Pilot buttons in the "Voices" menu.Do I have to install some modules or dll files, because of the windows version I use. Or is there something else going wrong.Please can somebody help me with this.My System:2 Intel Xeon quadcore 2.66Mhz each2Gb RAMATI X1900XT Pro 512Mb RAMWindows Vista Home Premium 32bitMs FS2004 (9.1)Best RegardsRoy

you have to right mouse click the .exe or the shortcut, and then click run as administratoralso make sure you have defined the .flt/.wx path, by clicking on the .flt/.wx buttonjd

Thanks JD,It all works now,Regards,Roy