Real environment Pro(blem)

Hello all!
I just downloaded REP for FS9 and installed it as mentioned in the accompanying read me.
Installation proceeds smoothly until in the end the installscreen appears.
Then suddely everything freezes and the last bit of installation stops.
The only way to escape is via task manager.
I installed it twice: once in Program Files and later again in Program Fils x86, after removing the previous one.
In both cases: no joy.
Does this sound familiar to anyone and if yes: how can this be fixed?
(The scenery looks very impressive and I am looking forward to have it installed.)
Thanks in advance fo your reply.
I just downloaded REP for FS9 and installed it as mentioned in the accompanying read me.
Installation proceeds smoothly until in the end the installscreen appears.
Then suddely everything freezes and the last bit of installation stops.
The only way to escape is via task manager.
I installed it twice: once in Program Files and later again in Program Fils x86, after removing the previous one.
In both cases: no joy.
Does this sound familiar to anyone and if yes: how can this be fixed?
(The scenery looks very impressive and I am looking forward to have it installed.)
Thanks in advance fo your reply.