VSS strange error on Windows 2008 x64

Today I spent 2 hours trying to make bacula fd work on Win2008 Server.
I got permanent error in event viewer:

Volume Shadow Copy Service error: A critical component required by 
the Volume Shadow Copy service is not registered. This might 
happened if an error occurred during Windows setup or during installation 
of a Shadow Copy provider. The error returned from CoCreateInstance on 
class with CLSID {e579ab5f-1cc4-44b4-bed9-de0991ff0623} and Name 
IVssCoordinatorEx2 is [0x80040154, Class not registered]. 

Operation:
   Instantiating VSS server

After googling for some time I found an answer: I had installed 32-bit bacula version by mistake... After installing 64-bit version, everything started working...