IIS7.5

Thanks for any help. I thought this would be the perfect place to ask my question.

My setup: Drupal 7.15 / IIS 7.5 / PHP5.3 / SQL Server 2008

I started receiving these crazy "Permission denied in drupal_unlink()" errors after an update from 7.13 to 7.14 (and then 7.15). At first, I focused on the permissions for the tmp directory. But after getting some assistance from Drupal's issue queue, I was able to pinpoint the problem as being related to the "sites/default/files" directory.

Drupal 7 / MS SQLSRV / IIS 7.5 (on localhost)

I'm trying to create a multisite setup on my localhost account with Drupal 7, and it's not been as easy as I had hoped. The biggest issue is that all of the tutorials on setting it up are for Apache and/or hosted setups.

This is what I need:

http://localhost (main install)
http://localhost/site1
http://localhost/site2
http://localhost/site3

Does anyone either know of a great tutorial or documentation on how to do this? If not, some basic steps on accomplishing this would be great. Thanks for any help.

I'm trying to configure a Drupal installation on IIS 7.5 (Windows 2008R2). I installed PHP via the Web Platform Installer, and I do have Drupal running.

However, when I enable CSS Aggregation via admin/settings/performance, the aggregated css files are not being generated. I get the following error:
The selected file could not be copied, because no file by that name exists. Please check that you supplied the correct filename.

My group and I are attempting a multi-site setup using a single codebase with IIS7.5. We have defined a ton of rewrite rules using the awesome built in UI. That has left us with a fully pimped out web.config file in our Drupal root. We have several sites already set up, some with their own databases and some that only exist as translated versions of our main site.

How can use new, clean web.config files for each site that would let us redefine rewrite rules (or create local rules only applicable to an individual site.)