Dear Sir/Madam, I could not install the ISA2000-KB816458-x86.exe (with release on this 13 Jan 2004 http://www.microsoft.com/downloads/details.aspx?FamilyId=CBE42990-4156-4 E1D-9ACB-4CD449D9599B <http://www.microsoft.com/downloads/details.aspx?FamilyId=CBE42990-4156- 4E1D-9ACB-4CD449D9599B&displaylang=en> &displaylang=en ) to my server machine running on Ms Windows 2000 advance server SP4 with just recently update the criteria from Microsoft website + MS ISA 2000 SP1 (intergrated mode) Firstly, it prompts me to close the process "940 svchost.exe" which describe "GKSVC", but I could not close it. I could only press the Cancel button, and then it said "Some of the files cannot be updated because they are currently being used by other applications" Ps: I have successfully installed it to my two other servers already. Actually, I have 3 servers which have the same configuration; they are isolated from each other. I got the problem to my last server. Any help, would be appreciating. Thanks Best regards, Krisna