Hi all,
I just forward the information. Take a look at this topic:
http://forums.avsim.net/dcboard.php?az= ... &mode=full
It seems that by copying the CV*.* textures files from FS9 to FSX, the VC rain effect works again for the FS9 planes in FSX. No lck for the FSX default aircraft, though.
Of course, the famous rlvcrain.zip is still adequate.