I more detailed tested nLite and i found this problem 1. If i try apply only Tweaks, nLite do not change txtsetup and dosnet -> error missing nLite.inf and Srclient.dll 2. Call nLiteRF=ocgen.dll,OcEntry,nLite.inf,HIDE,7 from sysoc not work(he cnt work) 3. reason of my problem with UpdatePack-XPSP2-Rus, at moment of presence window "Apply changes?" nLite lock files txtsetup sysoc... , and UpdatePack-XPSP2-Rus can't change them, i don't know continues nLite lock this file when he itgrated Ryn automatic if yes -> error 4. HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce","nlreg",0x00020000,"rundll32 advpack.dll,LaunchINFSection %SystemRoot%\inf\nlite.inf,T" I thought that this section from hivest will be added to registry, BUT on T34 windows RUN immediately this "rundll32 advpack.dll,LaunchINFSection %SystemRoot%\inf\nlite.inf,T"(try install calc.inf) from sysoc nLite section work correct, i think not it is necessary to start form hivesft, all strings from RunOnce run on T13, some tweaks will be overwriten later(crashcontrol tweaks not work). After nLite i have this strings in nLite.inf [nLiteRF] OptionDesc = "nLite" Tip = "Windows component removal adjustments and tweaks." Modes = 0,1,2,3 AddReg = S HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce","nlreg",0x00020000,"rundll32 advpack.dll,LaunchINFSection %10%\inf\nlite.inf,nLiteReg" what is %10% may be %systemroot% i think -> need add HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce","nlreg",0x00020000,"rundll32 advpack.dll,LaunchINFSection %systemroot%\inf\nlite.inf,nLiteRF" to T or H C section in nlite.inf [nLiteRF] OptionDesc = "nLite" Tip = "Windows component removal adjustments and tweaks." Modes = 0,1,2,3 AddReg = S HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce","nlreg",0x00020000,"rundll32 advpack.dll,LaunchINFSection %systemroot%\inf\nliteFinal.inf" nliteFinal.inf this is copy of nlite.inf without calling nLiteRF(nLite section rename to DefaultInstall ) Result -> form sysoc apply nlite.inf,nlite -> on t13(work runonce) apply nlite.inf,nliteRF -> from nliteRF add to runonce nliteFinal.inf call ->= all tweaks enabled try to setup calc.inf(Rbutton -> setup) from attached nlite.inf i have all tweaks are enabled to nowinscenario: MMC to come up as blank interfaces if I correct has understood your problem then answer here -> u apply Ryn(or other update) he contains in itself KB907265 which does not be friends with Xpize ! do not apply Xpize! NLITE.INF calc.inf