Webviewer to show related record files

Dear Programmers,

I want to display files for each record separately on the layout which are related to them.

I have added a container, browse button to upload and a web viewer on the layout.

Browse button will browse for file and put it into container field then will export the contents to a folder which is associated with that record number.

All the files are saved to-> \\server\attachments\{record-number} i.e. Record 1234's files will be in this folder -> \\server\attachments\1234

I am doing it this way:

Send Event [ open document/application; "cmd /c \\server && cd\Attachment && md" & Table::RecordNumber ]

Insert File [ Table::Attachment ]

Set Variable [ $attachment; Value:Table::Attachment ]

Set Variable [ $output; Value:"filewin://server/Attachment/" & Table::RecordNumber & "/" & $attachment ]

Export Field Contents [ Table::Attachment; “$output” ]

Set Field [ Acceptance::Attachment; "" ]

The problem I am facing is:

1. CMD does not support UNC paths as current directories. (\\server) - So how would I be able to create directory in my required location.

2. How can I put an IF statement to check if the directory exist or not, if not then create it before exporting the field contents.

Any suggestions?