So came into a problem of url encoding in IIS 7 where it does not like “+”, “/” in the Url. Basically a Url that looks like of like this

http://fake.abc/TIRlcEq0umjO6uJqtqvnkUGntUzv19rK+8mcvPK5qL1bwEZtEUqTlc3iF/TomuXU746Il5IF2iN9SeYuYDqt6SQzfdrv+Ltug2KZteKlYawc=

I know you may say what is this??? Its actually some kind of encrypted data that is in base64, but since IIS 7 does not like “+” or “/” even if its url encoded.

So I made a Utility class string extension method that just simply replaces the characters with “-” and “_”

Here is the code so maybe someday it would help you out also.

And always there should be a test for it.

There are other ways of fixing this and one can read them at
http://blogs.iis.net/thomad/archive/2007/12/17/iis7-rejecting-urls-containing.aspx
http://bentaylor.org/dasBlog-Patch-Add-Choice-Of-Dash-For-Post-Title-URL-Spaces.aspx