Sergey,

>Do you've any sample code (in VB would do)? Can you post parameters desription from docs?

Is this sufficient?

' VBSCRIPT Sample Code

Set QuickAddress = Server.CreateObject("QAS.QAProWeb")

' If object creation was successful, perform search. 
If IsObject(QuickAddress) Then

Dim asSearch (2)
asSearch(0) = "2"
asSearch(1) = "M46 9EE"

Dim iPotential, asPreviews, asTags, aiFlags, aiScores
QuickAddress.Search 0, "GBR", 1, asSearch, iPotential, asPreviews, asTags, aiFlags, aiScores


etc....

Paul