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Success := success and RegQueryDWordValue(HKLM, key, 'SP', serviceCount) Success := success and RegQueryDWordValue(HKLM, key, 'Servicing', serviceCount) ![]() NET 4.0 and newer use value Servicing instead of SP Success := RegQueryDWordValue(HKLM, key, 'Install', install) Success := RegQueryDWordValue(HKLM, key '\Setup', 'InstallSuccess', install) NET 3.0 uses value InstallSuccess in subkey Setup Key := 'SOFTWARE\Microsoft\NET Framework Setup\NDP\' versionKey NET 4.0 FullĮlse if Pos('v4.', version) = 1 then begin NET 1.1 and 2.0 embed release number in version key Install, release, serviceCount, versionRelease: cardinal service - Specify any non-negative integer for the required service pack level: version - Specify one of these strings for the required. Indicates whether the specified version and service pack of the. įunction IsDotNetDetected(version: string service: cardinal): boolean #INNO SETUP CHECK IF ALREADY INSTALLED CODE#I’m placing this small bit of code in the public domain, so you may embed it in your own projects, modify and redistribute it as you see fit. #INNO SETUP CHECK IF ALREADY INSTALLED HOW TO#Function InitializeSetup demonstrates how to use IsDotNetDetected to check for. All listed version strings are for final release versions betas and release candidates typically have different version numbers. NET Framework version and at least the specified service pack level are installed. In the following Inno Setup scripting code block, function IsDotNetDetected checks whether the specified. NET 4.0 or newer even if the application would be compatible. Queries for older versions require exact matches, i.e. ![]() NET 4.5 or newer, due to the latter installing as in-place updates. they will succeed if the Release value is equal to or greater than the specified version’s minimum value on any system. #INNO SETUP CHECK IF ALREADY INSTALLED WINDOWS#Version 4.5.1 introduced an additional complication: there are two possible Release values, depending on the Windows version! The script handles this by treating all queries for versions 4.5 or newer as minimum requirements, i.e. (Sadly, I didn’t think to record the version strings for 4.5.1
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