Heroes Of Might & Magic 5 + Hammers Of Fate

[micos000]

Hi there.
Today i tried to put Heroes Of Might & Magic 5 and the expansion Hammers Of Fate (European version) on 1 dvd just for backup.
I know that they fit fine.
The problem is that i want to put some extra stuff in it and i want to remove all the languages except English/GB.
I did it with iscab14.0.0.162 and the batch files and remove the other language files but when i run setup it says that "An installation support file could not be installed".
The data1.hdr shows that the files have been removed from inside of the installation.
I think there is something with layout.bin but i don't know what.
Anyone knows how to fix this?

P.S. Please, ignore my English errors.