Webutil File upload

I am using the webutil in our 9ias R2 server, when I try to upload a file to AS using the function WEBUTIL_FILE_TRANSFER.CLIENT_TO_AS_WITH_PROGRESS(fname,'/tmp/testing','Transfering','Transfer',true,null);
The error WUT-121 prompt.
I had the following setting in the webutil.cfg:
transfer.database.enabled=TRUE
transfer.appsrv.enabled=TRUE
transfer.appsrv.workAreaRoot=/tmp
transfer.appsrv.accessControl=TRUE
#List transfer.appsrv.read.<n> directories
transfer.appsrv.read.1=/tmp
#List transfer.appsrv.write.<n> directories
transfer.appsrv.write.1=/tmp
is there anything else I haven't taken care??
Rgds

yes this is a copy of that portion of the webutil.cfg file
#NOTE: By default the file transfer is disabled as a security measure
transfer.database.enabled=TRUE
transfer.appsrv.enabled=TRUE
transfer.appsrv.workAreaRoot=c:\
#c:\temp;
transfer.appsrv.accessControl=TRUE
#List transfer.appsrv.read.<n> directories
transfer.appsrv.read.1=c:\temp
transfer.appsrv.read.2=c:\
#List transfer.appsrv.write.<n> directories
transfer.appsrv.write.1=c:\temp
transfer.appsrv.write.2=c:\
the v_boolean variable seems to be null when the proc is finished.

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