ISO problem using Virtual PC

If I'm writing in the wrong section - sorry!!

Ok, this is my problem:

I use Ryan to integrate the update pack and also a couple of addon packs. Then I use NLite to make a few changes and burn as an ISO file. then I use the virtual pc to test the tweaked XP Pro. After the copy has loaded I always get an error message in a box:

The box is entitled"rundll32.exe - unable to locate component"

The error message is: "the application failed to start because framedyn.dll was not found. Reinstalling the application may fix this problem".

I've tried different addon packs and also different copies of XP pro but I always get this same error message. The only time it doesn't appear is when I burn an ISO with no update packs and no addon packs and no tweaks.

Also, the message "new programme is installed" shows in the start menu but nothing is there, and I can't find any of the packs I integrate.

what am I doing wrong?

Many thanks for you help and advice

Regards steve