Hello! 

I want to create a Visio drawing on the IIS server, and then exposing it 
to the client, in a Visio content type. 
I use the Visio type library for creating the drawing in a .cs or .vb 
file behind an aspx. 
In certain points of the program - when dropping a shape from a master, 
or when adding a new page to an existing document - the server hangs, the 
Visio.exe instance remains loaded in the memory, and nothing happens. 

The same code works fine if I run it from a Windows Forms application. 

So my question is: how can I use all the features of Visio type library 
from a Web application? 

This is what I do (simplified a lot): 

Dim visApp As Visio.InvisibleAppClass 
Dim visDoc As Visio.DocumentClass 
Dim visPage As Visio.PageClass 
Dim visMaster As Visio.MasterClass 
Dim visShape As Visio.ShapeClass 

visApp = New Visio.InvisibleAppClass() 
visDoc = visApp.Documents.Add("Organization Chart (US units).vst") 
visPage = visDoc.Pages.Item(1) 
visMaster = visDoc.Masters("Executive") 
visShape = visPage.Drop(visMaster, 1, 1) 'HERE IT HANGS!!!! 

visDoc.SaveAs("c:\work\visio\test.vsd") 
visApp.Quit() 

Thanks in advance.