Hi BD i am fine, you too? i am happy to see that i am not forgotten... I have found another good working Au3, which is complete different from what K. have written. i was curious if he uses this or have rewritten it in the past. if you are interested to watch the mine, check the sticked autoit thread in subforum "application installs" Edit: i have retry the old installers way and remove the space between /v and /qn and i tested it on a pc which have MSAntispyware never been installed, it seems to works fine, i dont use the "%ProgramFiles%/Microsoft AntiSpyware/gcasDtServ.exe" /regserver" line . cmd1[pn]=['%CDROM%\\Install\\MS_AntiSpyware\\MicrosoftAntiSpywareInstall.exe /s /v/qn']