Error when opening BEx Query Analyzer under SAP GUI 7.10

While you are trying to run transaction RRMS in SAP GUI 710 under version BW 7.x you might experience an error message saying:

Microsoft Excel is not installed; install Microsoft Excel ViewerMessage no. RSR_LAUNCH_EXCEL102

Error behaves as well when you try to run BEx Query Designer via Start menu of Windows. Then your whole Excel got stuck. The solution is to upgrade your SAP GUI to the newest version of its Patch Level (PL). Currently there is available PL 6 (gui710_6.exe) for GUI 710. Make sure that you are using BI 7.0 ADDON FOR SAP GUI 7.10 (bi710sp02p_201-10004472.exe) for SAP GUI as well.

Download PLs from OSS or FTP servers. On OSS navigate your self like following: Downloads -> Support Packages and Patches -> Entry by Application Group -> SAP Frontend Components -> SAP GUI FOR WINDOWS -> SAP GUI FOR WINDOWS 7.10 CORE -> Installation -> Win 32.