I really appreciate your work and have a lot of respect for what you have done but there is no need to get invidious. Of course the best way is to contact mircosoft but i am never going to be an oem system builder partner for the next 10 years or so cause my business is just too small. Thats why i tried to get some information in this forum. I think my question isnt that ridiculous. What abour TGT Soft. They patch the uxtheme.dll too, so why should the method with nlite be illegal? Maybe i expressed myself a bit unclear. I dont want to sell self burned nlited cds labbeld Dotterbarts Windows XP. I would provide the customer with the untouched original media, just the installation is configured with some tweaks, hotfixes and programms? I hope that maybe some people here can help me with this issue or point me in in some other directions (Microsoft Information papers for reseller or something). thx in advance mfg Dotterbart