nLite bug or...?

[mcstare]

Hello,

I'm trying to make an unattended using nLite 1.4.5.b2. When I remove either MSN Explorer in the network section or Messenger in the services section I get an error. Not removing these two results in an working unattended. The error occurs at T39 and say something like "Setup can't install product catalogues and the signature of Win XP Pro is invallid" (Sorry for my poor English; I tried to translate from Dutch).

After using nLite I intergate the Dutch Updatepacks with RvM Integator and the most recent driverpacks with DPB. Finaly I make an ISO with RvM Integrator again.

Am I removing some necessary parts or is this a known problem?