In a windows shared webhost, normally, they are giving medium level of trust mode for you. Therefore, you can access some core functions such as accessing event log. In my cases, I can't call some custom assemblies. If I run asp.net web application, I will only use full trust mode.
I found another free altenative of Resharper, TytanNet. It is not bad, that is very little weight option. It got refactoring function. I like it has some shortcut to insert special data, such as class and interface.
I believe a number of people will say Resharper is a good reflectoring tool. But that cost money! I found an alternative product, CodeRush.The express version is free of charge. But the functions are very limited, such as renaming and promote a local variable to a class variable. Yes, there are no free lunch.