topic Hi Deva,   Try to use child… in Product Forum https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93401#M42985 Hi Deva,   Try to use child index equal to 0 in attach stage (it worked for me). Let me know if this works for You.   Best regards Michal Fri, 08 Feb 2019 16:59:00 GMT MichalSzumski 2019-02-08T16:59:00Z Unable to Attaching IE https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93400#M42984 HI, I tried to attaching the existing IE window through browser based application in App Modeller. Window title kept empty(I don't know the window title for ie window) and process name I given as iexplore But I am getting error like More than one matching window is found.   Please help on it to resolve Fri, 08 Feb 2019 15:05:00 GMT https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93400#M42984 Peeleti_Devendra 2019-02-08T15:05:00Z Hi Deva,   Try to use child… https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93401#M42985 Hi Deva,   Try to use child index equal to 0 in attach stage (it worked for me). Let me know if this works for You.   Best regards Michal Fri, 08 Feb 2019 16:59:00 GMT https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93401#M42985 MichalSzumski 2019-02-08T16:59:00Z yeah its working thank you https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93402#M42986 yeah its working thank you Tue, 19 Feb 2019 13:22:00 GMT https://community.blueprism.com/t5/Product-Forum/Unable-to-Attaching-IE/m-p/93402#M42986 Peeleti_Devendra 2019-02-19T13:22:00Z