Errors when attempting to publish aspx files via webdav

After I installed t开发者_高级运维he .net framework 3.5 to my IIS box (which didn't have any previous version of .net framework), I'm not long able to upload the aspx page via WebDav with MS Expression Web. I got this error:

HTTP/1.1 403 Forbidden 

Also I got this error Server Application Unavailable when trying to open the aspx page. my IIS box is not a domain controller nor a backup domain controller.

I have enabled the webservices extention - ASP.NET v2.0.50727 and `WebDAV;

and still no luck, Help please!

OK I solved the second question about the "Server Application Unavailable" by changing the "Execute Permission:" in Application settings from "Scripts Only" to "Scripts and Executable".

I am not sure if this setting is safe or recommended but it enables my aspx pages to be called and run.

any advices?! thanks!