Problem of installing Crystal Reports Print Control(ActiveX)

Question

Environment
Windows 20003 SP1
ASP.NET 2.0
Crystal Reports XI SP4
Background
I am converting ASP application to ASP.NET.
I used ActiveX Viewer on ASP.
Now, I decide to use CrystalReportViewer and PrintControl(ActiveX) on ASP.NET.
CrystalReportViewer.PrintMode = CrystalDecisions.Web.PrintMode.ActiveX
Problem
I want to make normal user (user which is in "Users" group)  use PrintControl because of security reason.
But normal user can't use PrintControl.
Reproduce Procedure:
1. logon windows as admin user.
2. install ActiveX (PrintControl) after clicking print icon.
3. logon windows as normal user.
4. when normal user clicks print icon, nothing happens.
    (small dialog for printing is displayed, but nothing happens.It looks like "hang". )
When I used ActiveXViewer on ASP, the following steps worked well.
1. logon windows as admin user.
2. Install ActiveX (ActiveXViewer) in report screen.
3. Logon windows as nomal user.
4. normal user (of cource, other admin users) can use ActiveXViewer without installation.
Could you tell me how to use PrintControl on normal user authority?

Answer 1

Thank you very much for your answer.
I solved it.
The cause of this problem is , the dll version string in print.js which creates <OBJECT> tag dinamically is different from dll file version.
i.e. the version string in <OBJECT> tag is newer than dll version.
As a result, each time user accesses HTMLViewer, cab file is downloaded and installed.
We modified the dll version string in print.js, and my problem is fixed.