Habilitar COM de Excel en una aplicación

Type dcomcnfg in Run.Select Microsoft Excel application and click

properties.In this go to security tab.U can see 3 Radio button.

Checked "Use custom access permissions" and go to edit button.Here u

have to add systemname/ASPNET(asp_wp account)(It will be populate

when u click show users) and Administrator.

Same way u have to follow remaining 2 radio buttons.

After that u go to Identity tab and check the "The launching

user".Then run your application.Still if u get access denied or

system throw error change the "The launching user" to "The

interactive user".