Create virtual directory

Go to run ->type inetmgr->From left side panel enlarge till getting the Default web sites->Right click on Default web sites ->Add virtual directory->A new window will open->Give alias name (Name by which you access your application)->Give physical path of your application folder by browsing->Select OK->Right click on the web side you have created now from the left side with your alias name ->convert to application->Ok->Then select the directory from the left panel and double click on Default document ->It will open a new window ->Right click on that and select add->it will open a new window here give the page name  of your application which will be displayed as the start page->ok-> select the page name which you have given now in the middle tab-> Take this to the top .