[SOLVED] 403 error while uploading image in ckfinder

CKFinder connector for classic ASP. The connector is in Debug Mode.
In order to use the connector you'll have to set CKFinder_Debug = false.
Response from the connector (including debugging messages):
                                                                        
Response Number: 1
FileUpload_fileName: Error returned in call to Asp.Net
Uploaded: False
Debug Text: Error returned in call to http://mobyv02/xxxx/inc/ckfinder/core/connector/asp/loopback.aspx?tmp=radE205C.tmp&command=ValidateImage&InputImage=c%3A%5Cinetpub%5Cwwwroot%5Cxxxx%5Copen%5Fdir%5Ctesti2%2Fimages%5C191%2EGIF. (1, <h1>403 - Forbidden</h1>)

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.web>
   <compilation tempDirectory="C:/Inetpub/wwwroot/xxxx/open_dir/testi2/temp/" debug="true" />
  <customErrors mode="Off" />
</system.web>
</configuration>

baseUrl = "/coretech/open_dir/testi2/"
baseDir = "C:/Inetpub/wwwroot/xxxx/open_dir/testi2/"
Images.Add "component", "Asp.Net"
CKFinderTempPath="C:/Inetpub/wwwroot/xxxx/open_dir/testi2/temp/"