Issue with starting BEx

Hi Expert,

I am getting an error when trying to launch Query Designer. I am getting the following error 'SAP BEx Query Designer Standalone has stopped working'. The message looks like a Window's message. Sceenshot below. I have already tried un-installing and re-installing the SAP Logon.

System details - 7.3 Patch 5(64 bit OS)

Please provide your suggestion.

Thanks,

Anupama