Wrong Product Key

You have downloaded your product from the Subscription Center, but, when you enter the product key you see it is marked with a red cross.

In general this happens, if you have downloaded the wrong product from the Subscription Center.

There is an easy way to find out the the associated product key for the product you have downloaded.
1. Navigate to the location of the setup.exe file for your Autodesk product.
2. In that folder, look for a file named MID.txt, MID01.txt, MID02.txt or some variation on that name.
3. Open this file in notepad and verify that the product name is what you expected it to be.
4. The first five characters of the part number should also be the product key for that product.

Example:

MID: Autodesk_Design_Suite_Ultimate_2012_64bit_SWL_ENU_C009_EXE1
Product Name: Autodesk Design Suite Ultimate 2012
Platform: Windows XP/Vista/Win7
Media: ESD
Part Number: 769D1-05Y001-P503E, 769D1-05Y001-P504E

We recommend verifying the product name because sometimes customers who download their Autodesk software inadvertently download the wrong product and are then confused when the product key does not work as expected.

For more information read the solution http://usa.autodesk.com/getdoc/id=TS1105767