I had issues with diskspace when i tried to download the Alpha update that i thought i fixed by moving ophone back up files to another partition.   
When i tried to run DCS (non updated) i got  
00108.702 ERROR: Can't run C:\Program Files\Eagle Dynamics\DCS World\bin/DCS.exe: (2) The system cannot find the file specified. 
So during the update when i ran out of disk space the dcs.exe file disappeared somewhere.   
Now doing repair and it is downloading 37,562 Mbytes.   
This is the third time i have gone through this operation. Any one have any ideas.  I really just want DCS 2.5 back, looks like program is getting too big now unless you have a dedicated computer. autoupdate_templog.txt