knownsvr.exe--Ordinal Not Found

The ordinal 22 could not be located in the dynamic link library NComm.dll

还有一个出错信息是:

CiceroUIWndFrame: RSTray.exe--Ordinal Not Found

The ordinal 100 could not be located in the dynamic link library NComm.dll

还有:

RisWnd: RSTray.exe--Application Error

The instruction at "0x013893fe" referenced memory at "0x00000000". The memory could not be "read".

Click on OK to terminate the program
Click on CANCEL to debug the program

升级到最新版本无法解决问题。请问是出了什么错误？如何处理？

用户系统信息：Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322)