Hi Sergei,
> It is normal that the same message?
Actually, the message is not the same but consists of two parts: the first part tells you what object or method you was trying to access and the second part tells you what object or method caused the problem. When (like in your case) both object names are the same, this means that the problem was caused by the last element (SysTreeView32 in your case).
Most probably, you need to check what UI element is used in Win8 instead of SysTreeView one that was used in WinXP (it might be, for example, 64-bit version of the same control) and either create a separate namemapped name for it to be used for Win8, or create a separate configuration (
http://support.smartbear.com/viewarticle/55105/) for Win8 if there will be too many problematic elements like this, or use a conditional namemapping (
http://support.smartbear.com/viewarticle/55608/).
