Contributed By: Sudheer GN [MSFT]
Extracting 'bitsadmin.exe' from the 'support.cab' is the recommended procedure to get 'bitsadmin.exe'.

Since you cannot find 'support.cab' on your install CD, the following is a workaround that you can use.

Microsoft Software Updates Service (SUS) provides a diagnostic tool to troubleshoot issues related to SUS and this tool includes 'bitsadmin.exe'.  The following is the location of the tool:

http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd915706/MPSRPT_SUS.EXE

Please see the README file:

http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd915706/MPSRPT_SUS_Readme.txt

about what the tool does before downloading and running the tool.

Information about the tool is at

http://www.microsoft.com/downloads/details.aspx?FamilyId=CEBF3C7C-7CA5-408F-88B7-F9C79B7306C0&displaylang=en

Since this is a SUS diagnostic tool, it will extract the binaries in '%SystemRoot%\MPSReports\MSUS\bin' and then runs the tools to collect the SUS related information. The tool collects the information and stores in files on the machine.

You will be able to copy 'bitsadmin.exe' from '%SystemRoot%\MPSReports\MSUS\bin' directory.

Once you copy 'bitsadmin.exe' to another location, you can remove the '%SystemRoot%\MPSReports' directory and this will remove all the other files that have been extracted and the information collected.