Hi Ken,

Thanks for the reply.

In my present code:

For a "Default.aspx" file (Source View), there is no "TempDirectory" property is present  for ajax uploader control . But in 

"Default.aspx" file (Design View), right click the ajax uploader control and view properties, the TempDirectory property is 

set to "~/UploaderTemp". <-- Is this inconsistency between the Source View and Design View creates the problem?

Administrator is logged into the OS. The AppPool process model identity is set to "LocalSystem". The "UploaderTemp" folder is present in the path "C:\inetpub

\wwwroot\MigrationTools Web Site\MigrationToolsWebApplication\UploaderTemp". The UploaderTemp folder properties security tab -> Group or User Name for the user "System" and "administrator" is set to full access.  Is these settings are fine or any new group or user has to be added?

Regards,

sans.