licensing - Is a Windows 7 OEM Key valid for 32bit and 64bit?

I have a Sony Vaio VPCEC15FG laptop with Windows 7 Home Premium 64-Bit OS (Genuine).
Are there any legal problems for burning a customized Windows 7 DVD and keeping it in hand?

Since they are not releasing the SP2, I am planning to integrate all security updates to the DVD using some third party tools like RT7Lite and to keep it.

Answer

• To answer your first question regarding 32-Bit and 64-Bit
  Yes, its allowed and it will work
  Windows 7 Retail DVDs always contain x64 and x86 versions - OEM DVDs doesn't (thx@Phillip R)




• Your second question about legal problems with slipstreaming servicepacks & updates
  Thats also allowed




• Please have also a look at the community wiki: Windows 7 Activation FAQ
  It answers your first question very well

PS: I recommend nLite for those tasks
Beside your own recommendation RT7Lite you can try 7Customizer