I have upgraded the program ImageX with an hotfix to the version 6.1.7601.21716 but the result is the same. The program creates a modules which is larger than 300MB. The program CreateSpannedShares starts to create the map CD1 to CD25 but uses internally the program ImageX to create the .SWM files. The map CD10 contains therefore also the file install10.swm which is larger than 300MB (814MB).