On 64 bit windows 2008 R2, from which directory of windows, does the WinCC OA 3.11 list down the activeX controls ? Is it system32 or SYSWOW64 ?
I ask this because Visual studio 10.0 show a full list of registered controls , whereas WInCCOA 3.11 does not list them.
Thanks.
ActiveX Controls on 64 bit platform
- Gertjan van Schijndel
- Posts:634
- Joined: Mon Aug 02, 2010 10:37 am
Re: ActiveX Controls on 64 bit platform
It depends on which version you have installed.
64bit applications use the system32 directory.
32bit applications use the syswow64 directory.
64bit applications use the system32 directory.
32bit applications use the syswow64 directory.
- aorange
- Posts:147
- Joined: Thu Nov 04, 2010 10:07 am
Re: ActiveX Controls on 64 bit platform
That's very intuitive 
- bhavna
- Posts:37
- Joined: Mon Dec 20, 2010 1:12 pm
Re: ActiveX Controls on 64 bit platform
Confusion arose from the fact that 64 bit installations of visual studio 10.0 and WinCCOA 3.11 handled the Activex differently. Thanks, now I know in WinCCOA 64 bit installation I will not be able to use ActiveX controls which I used in 32 bit app. So I need to modify my application accordingly.