WebLauncher ObjectModel problems

[Quintus]

I'm trying to adapt the WebLauncher project to a build project I've set up. I'm using Visual Studio 2008 and just playing around in a debug environment. Using the sample code for BuildWithConsoleApp I'm able to run my VBP just fine. When I try to use the sample code for BuildWithObjectModel (I'd like to be able to easily view build progress in the browser), however -- I get an "Access violation" exception:

Source Error:

Line 144: VisBuildSvr.Builder bld = new VisBuildSvr.BuilderClass();
Line 145:
Line 146: app.Project.Load(projectFile);
Line 147:
Line 148: // add all macro values as temporary macros


Source File: C:\...\Default.aspx.cs Line: 146

Stack Trace:

[COMException (0x80004005): Access violation.
Exception 0xC0000005 occurred in module C:\WINDOWS\system32\OLEAUT32.dll at address 0x77124C27, offset 0x00004C27.]
VisBuildSvr.IProject.Load(String filename) +0
WebApplication1._Default.BuildWithObjectModel(Stri ng projectFile, String[] names, String[] values) in C:\...\Default.aspx.cs:146
ASP.default_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in c:\...\Default.aspx:17
System.Web.UI.Control.RenderChildrenInternal(HtmlT extWriter writer, ICollection children) +98
System.Web.UI.Control.RenderChildren(HtmlTextWrite r writer) +20
System.Web.UI.Page.Render(HtmlTextWriter writer) +26
System.Web.UI.Control.RenderControlInternal(HtmlTe xtWriter writer, ControlAdapter adapter) +25
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2558