Hi @ll, the Microsoft security bulletins <http://technet.microsoft.com/en-us/security/bulletin/ms06-020> <http://technet.microsoft.com/en-us/security/bulletin/ms06-069> show the following workaround to disable Macromedia Flash Player with software restriction policies a.k.a. SAFER: --- MS06-069.REG --- REGEDIT4 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer\CodeIdentifiers] "TransparentEnabled"=dword:00000002 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer\CodeIdentifiers\0\Paths\{2742f840-c2d8-4eb3-a486-0a9d0879f29f}] "LastModified"=hex(b):10,c3,8a,19,c6,e3,c5,01 "Description"="Block Macromedia Flash" "SaferFlags"=dword:00000000 "ItemData"=hex(2):25,77,69,6e,64,69,72,25,2f,73,79,73,74,65,6d,33,32,2f,6d,61,63,72,6f,6d,65,64,2f,66,6c,61,73,68,2f,2a,00 --- EOF --- When this (or an equivalent) SAFER rule to block flash player is set AND the flash player plugin/activex control is installed and enabled in Mozilla Firefox or Microsoft Internet Explorer, then both browsers stall or slow to a crawl as soon as a web page which uses the flash player plugin/activex control is loaded. Apparently both web browsers handle the return code(s) from the denied loading of the flash player plugin/activex control wrong! Tested with MSIE6 to MSIE9 on Windows XP to Windows 7, and Mozilla Firefox 1x.x on Windows XP and Windows 7. Stefan Kanthak PS: Opera doesn't show this error!
