Hi there!
I've just bought the complete pack with all the official expansions, but i have a problem.
Cryptic Passage doesn't work on my pc.I have windows 7.Someone could help me,please ?

You need to give yourself read/write/execute permissions to the installation folder.
See this thread for further instructions: http://www.gog.com/en/forum/blood_series/how_to_play_cryptic_passage

Hi DustyStyx!
I've tried to give full permissions to the folder "One unit whole blood" but, when i click on the icon of cryptic passage, it opens the dsbox screen just for a while;after that it close itself.How can i do?!Danm! i love this game!!!
Can you give me more help?

When you say you "tried" do you mean you tried and failed? When you open the File Properties window, under the Security tab, is your user name listed, and does it have "Full Control" checked?
The quick and dirty way of getting it to run would be to right-click on the CP icon and "Run as Administrator" But that's cheating and will get old quick.