![]() ![]() This means write access is only possible to HKEY_CURRENT_USER registry hive for the installer.Īn installation for all users requires either administrator privileges (user account has administrator rights) or elevation to special user account Trusted Installer (Windows Vista and later Windows) with a user prompt if the application should be really installed with the enhanced privileges the Trusted Installer account has. Installation for current user only or all usersĪn installation done for current user only does not require an elevation to a user account with enhanced privileges which means everyone can install the application just for usage by own user account.The bit width of the application on 64-bit Windows determine to which registry keys the application has access according to Microsoft article Registry Keys Affected by WOW64 (WOW = Windows on Windows). ![]() But it is possible to install 32- or 64-bit applications on 64-bit Windows. Only 32-bit applications can be installed on 32-bit Windows. ![]() On a computer with a 64-bit processor there can be installed nevertheless 32-bit Windows which means 64-bit applications can't be used although the CPU would support them. The bit width of the processor does not matter. 64-bit Windows display 64 in block with operating system information. 32-bit Windows does not show any information about bit width in this window. The bit width of Windows can be seen in Windows Control Panel - System which can be opened since Windows 95 by pressing Win+Break (pressing and holding Windows key and additionally pressing key Break (German: Pause) which on notebooks often requires pressing additionally the key Fn for Break key code). Bit width of Windows - 32-bit or 64-bit - on which the application is installed.What must be taken into account during installation process for correct application registration: The installers of all applications developed by IDM Computer Solutions, Inc. The Microsoft article Application Registration explains registration of applications on Windows. But you need administrator privileges for making those changes in Windows registry and I need the real program files path of UltraCompare on your computer. I have even a batch file which toggles those keys for easy switching between UC Lite and UC Prof. I know how to add the UltraCompare registry keys required for UltraEdit to detect installed UC Professional. I suggest also opening Windows Control Panel - Programs and Features, navigate to UltraCompare and select it, click on button Change and choose Repair as fleggy suggested already if there is such an option which depends on version of UC and UE respectively their installers not mentioned in your posts until now. For that reason I don't know how registration is done by the installers when installing UC and UE just for current user without administrator privileges which means no write access to HKLM.īird201, do you have really executed the installers of UltraCompare and UltraEdit?ĭo you have installed UC or UE or perhaps even both for current user only? This requires administrator privileges for the installation as the installers of UE or UC add registry keys to HKEY_LOCAL_MACHINE (HKLM) on installing for all users of the computer. ![]() Second, I install UC and UE always for all users of the computer although I'm the only human user using the computers with by default only one user account. UltraEdit and UltraCompare work with just copying the program files for the shareware testing period and unlimited after activating the license, but those registry keys added by the installers of UC and UE are missing which are used by both applications to detect existence of the other application. First, copying the program files of UltraEdit or UltraCompare from another computer is not installing the applications. ![]()
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