Which version of Visual Studio are you running?  If it's 2005, there are a couple of things you need to do.

2.  Click on the msm under Detected Dependencies and open the "(MergeModuleProperties)" section at the top of the Properties viewer.  Scroll down until you see "Keycode".  Enter your Crystal license key in the key code.  The easiest way to get this is to go to Help|About in Visual Studio - it will be listed in there.

Crystal XI does NOT integrate with VS 2008.  There are no plans to ever do that integration.  Crystal 10 comes with VS and it will integrate with Crystal 2008.

I know this from experience - I fought with VS 2008 for over a week to get it to do some stuff with XI so that I didn't have to upgrade our reports.

If you're not using .NET with C#, what are you using?  The error message you gave me says that your program is looking for a .NET assembly.

-Dell

public BOEAuditRptViewer(DataSet dsAuditInfo, bool isTax, string auditType)
{
  InitializeComponent();
  if (isTax)
  {
    ConfigureTaxAuditReport(dsAuditInfo);
  }
  else
  {
    ConfigureAuditReport(dsAuditInfo, auditType);
  }
}
private void ConfigureAuditReport(DataSet dsAuditInfo, string auditType)
{
  //Create a typed-report object
  BOEUserAuditRpt auditRpt = new BOEUserAuditRpt();
  auditRpt.SetDataSource(dsAuditInfo);
  //set the Profile Type parameter so that report data is filtered
  string profileType = "ALL";
  switch (auditType)
  {
    case "Consumer Marketing":
      profileType = "CMI";
      break;
    case "Corporate":
      profileType = "COR";
      break;
    case "Hazard":
      profileType = "HAZ";
      break;
  }
  //Now that we know the param value, set the parameter
  auditRpt.ParameterFields["Profile Type"].AllowCustomValues = true;
  auditRpt.ParameterFields["Profile Type"].CurrentValues.Clear();
  auditRpt.ParameterFields["Profile Type"].CurrentValues.AddValue(profileType);
  auditRptViewer.ReportSource = auditRpt;
}