ASP.NET BAD IL Range when adding files to bin directory or modifying web.config

Hi Experts.

In my product there are some actions where I modify the web.config file or add a file (e.g. license file) to the bin directory, or perform some other actions to cause the site to reset (like updating the date modified on web.config) thru the ASP.net application itself.

SOMETIMES after these actions the site displays an error BAD IL RANGE and requires me to do an IISRESET to get it to come back.

Any idea how this can be avoided?

This is an ASP.net 3.5 SP1 site.
mookaAsked:
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wolfman007Commented:
How did you create the bin folder in your ASP.NET site?

Did you create it manually or use the following?

In solution explorer right click on the website name
select "Add Asp.net Folders" followed by "Bin" will add the Bin folder.

Also check out the following website

http://blogs.msdn.com/tom/archive/2008/07/21/asp-net-tips-loading-a-dll-out-of-the-bin-directory.aspx

If you are in ASP.NET, most likely the cause is that you dont have the following entry in the machine.config prior to 2.0 and the root web.config file (in the same folder as machine.config) for 2.0 and later.
<compilation>
  <assemblies>
    <add assembly="*"/>
  </assemblies>
</compilation>

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mookaAuthor Commented:
I added a thread sleep and that resolved the issue.
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mookaAuthor Commented:
Found workaround
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