Please let me know if the USB write access is mandatory to acces the License from a USB dongle...??
Why is it so, as other vendors are giving with only the read access....
We do not and cannot write to the dongle in the runtime environment so I don't know why write access would be required. However, if the lack of write access is causing a failure to check out a license, we can investigate. You'll need to supply more information such as USB configuration, the application you're using and any error messages you're seeing.