The reason behind this design decision is that if RA was architected to allow the Helper to remotely elevate the User’s privileges, the User would be able to terminate the RA session and thus steal local admin credentials from the Helper.Īnyone can comment if this problem is fixed in Windows7? This means that if the User is a standard user on her computer while the Helper is a local administrator on the User’s computer, the Helper can only have administrative privileges on the User’s computer if the User can first supply those credentials.Įnforcing this limitation is essential to ensure the security of Vista desktops. In other words, the Helper can only respond to UAC prompts on the User’s computer using the User’s own credentials. It is important to understand that the Secure Desktop on the User’s computer is not remoted to the Helper’s computer. This consent requires either clicking Continue (if the user is a local admin on her computer) or by entering local admin credentials (if she is a standard user on her computer). The user must provide consent to a UAC prompt to return to her normal desktop and continue working. UAC elevation prompts are displayed on the Secure Desktop instead of the user’s normal desktop to protect the user from unknowingly allowing malware to run with elevated privileges on her computer. The Secure Desktop mode is the same mode that a user sees when she logs on to her computer or presses the Secure Attention Sequence (SAS) keystroke (Ctrl+Alt+Delete). Typically, User Account Control (UAC) prompts appear on the Secure Desktop (which is not remoted) and consequently the Helper cannot see or respond to Secure Desktop prompts. When a User consents to having a Helper share control of her computer during a Remote Assistance session, the User has the option of allowing the Helper to respond to UAC prompts (Figure 23-1). basically, the user must allow the helper to have admin access by providing their own admin credentials in order to prevent them from stealing local admin priviledges from the helper, which is moot because they already must have local admin priviledges! At least MS should have provided a Group Policy setting that turns off UAC for RA in a Domain or something similar. Thanks Microsoft for making our jobs that much more difficult and costly.īelow is an excerpt from the Vista Resource Kit book (from ) This is a design "feature" that essentially makes it impossible for a company to help their users unless the users are granted local admin rights on the PC, unless a third party product is used or UAC is disabled. If UAC is enabled, the user MUST respond to a UAC prompt when allowing remote assistance. Smc PENTAX-DA 18-250mm F3.5-6.I've found the answer. * Improve dialog display when using continuous shooting (Lo) * Improve superimpose indication in viewfinder when setting AF area Auto. * Addition of lens data -, , SDM], SDM]Īnd * Shorten the displaying of lens name on Image data pane * Support limited synchronize of shooting condition between different camera
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