[ASP.NET v3.5] Custom control requires mapping to aspnet_isapi.dll in IIS on hosted site.

Hello,

ASP.NET v3.5

I have found a cool control i would like to use (if interested: http://www.codeproject.com/KB/custom-controls/RbmImageControl.aspx)

My problem is that my application is hosted in shared hosting. The instruction to get this control working (as verified in dev) is this:
 
Under IIS, for specific Website
Under Virtual Directory  Click Configuration
- Under Mapping
- Click Add
- Executable : c:\windows\microsoft.net\framework\v2.0.50727\aspnet_isapi.dll
- Extension: .rbm
- Limit: GET,HEAD,POST,DEBUG

Note the RBM extension.

My question, is there a way to handle this with the web.config without having to plead with the hosting company to do this?

thank you!