CRXIR2 does not work with VS2010 on Windows 7 and Vista

Question

We are upgrading from VS2005 to VS2010. We are almost there, but there is a problem with Crystal Reports. We use the RDC component (COM) in our C ++ application.

In Windows 7 or on VISTA, I cannot get the viewer or designer controls to work. I get access violations when activating a control:

// from atlhost.h (line 2208) hr = m_spOleObject->DoVerb(OLEIVERB_INPLACEACTIVATE, NULL, spClientSite, 0, m_hWnd, &m_rcPos); 

The strange thing is that when I run the same exe on an XP machine, it works.

We mainly use the "AtlAxWin100" window class to host the Crystal Report control ("CrystalReports11.ActiveXReportViewer.1"). I am using the SP6 version of Crystal reports to the latest version.

Also, when I compile the same code with VS2005 and run it on Windows7 or Vista, everything works fine.

Does anyone have any ideas on what might cause the problem, or ideas for further research?

Answer 1

this seems to have something to do with DEP.

If we completely disable DEP in the system with

 bcdedit /set Nx AlwaysOff 

and then restart, of course, the viewer is working!

Unfortunately, this global system is disabled. Earlier we tried to disable DEP for our exe, but then we received a message from Windows that we were not allowed to disable DEP for our exe ...

Answer 2

SAP believes the RDC is dead.

Deprecated in 2006.

"RDC has not been tested and thus is not supported in any version of VS.NET" ....
"Please note that version 12.x RDC is not licensed for development use under any circumstances. It does not match any language. Also note that with CR 2008 (v. 12.x) you will only find crviewer.dll and CraxDDrt.dll has always required an additional reporting API license.

RDC is specifically designed around COM technologies and is intended for use by Visual Basic 6 developers; therefore, it is not recommended or tested for use in a .NET application ....
To support any RDC-related issue in a .NET application, these issues must be reproducible in a supported COM-based development tool (such as VB6).

Only the CR version supported in .NET 2010 is CR 2010, which does not send RDC (RDC was removed in CR 11.5). For more information on re..NET 2010, see the following ... [... later ...] In addition, since it is indicated on the platforms that we only support RDC in VS 6, and this end of life is almost over, we’re nothing cannot do to aggravate the problem.
You really need to upgrade to .NET and CR.NET builds. Using RAS is a replacement for RDC.

A significant part of this information is at least six months.