I am currently running ASV6 B500 (least ways that's what the ASV6 screen says, the .ini file says B499?) and I'm having a problem installing the B503 updateWhen I try to run the B503 setup I can accept the license agreement, click past the read me and OK the install folder. Then I get the message:"Error 1500. Another installation is in progress. You must complete that installation before continuing this one."As far as I can see there is no other install running - I get this even if I run it immediately after booting up the system. Any hints on how to fix / what to look for welcomed.ThanksJohn

Hi,Youe Windows installer may be causing this. Go to the MS site and install the latest version and see what happens.Please let us know!Hope this helps,Jimhttp://www.hifisim.com/Active Sky V6 Development Team Active Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter: http://www.jdtllc.com/AirSource Member: http://www.air-source.us/FSEconomy Member:http://dot.kelder.net:8080/fseconomy/

Tried to do this and had problems installing the new version of installer !!!Had a look in Task Manager and found two instances of msiexec.exe running - not sure how after a clean boot??? Stopped both of them and managed to install the new installer then was able to install Build 503. So that problem is fixed - many thanks. Now all I've got to do is work out why msiexec keeps getting restarted??? (however, not your problem)Regards & thanks for the help.John