You must download the installation files from the NetIQ download site.
To download the .iso file:
Access the NetIQ download website.
On the Product or Technology menu, select Identity Manager.
In the Select Version field, select Identity Manager 4.6, then click Submit Query.
Click the Identity Manager 4.6 link, then click proceed to download.
Log in with your NetIQ Customer Center ID.
Select the appropriate .iso file for your platform, then follow the on-screen prompts to download the file.
The integrated installation files (install.exe or install.bin) are located in the top level of the Identity Manager .iso files. Access the Identity Manager installation files either by mounting the .iso file or accessing the DVD you created from the .iso file.