Clue...

 

PowUpload setting in the web.config there are below line.

 

<settings tempPath="C:\Temp2\" processPages="*.aspx" ignorePages="ProgressAJAX.aspx" uploadIDQueryField="UploadID" enableProgressBar="true" bufferSize="16384" minRequestLengthProcess="0" throwErrorsImmediately="true" logExceptions="false" serialKey=""/>

 

I deleted tempPath="c:\temp2\"

 

and cuteEditor ImageUpload works fine. yet still I can't use powUploader.

 

So, I think maybe, cuteEditor set temporary Path during Upload.

Match that path should work...I guess..

 

So, What is the temporary path using cuteEditor?