Chris - actually, the URL I quoted uses X86 (cap), but I assumed that was a mistake - I used lower-case in tests on 3.5 and 4.0 Framework. With Framework 4.0, of course I got the same result as you: it works.
_____ Ian Thomas Victoria Park, Western Australia _____ From: ozdotnet-boun...@ozdotnet.com [mailto:ozdotnet-boun...@ozdotnet.com] On Behalf Of Fredericks, Chris Sent: Wednesday, February 08, 2012 5:01 PM To: ozDotNet Subject: RE: Environment variable ProgramFilesx86 - for x86 on 64-bit Windows I have only tried this in LINQPad/LINQPad4, but this statement when run: var Filename = Environment.GetFolderPath(System.Environment.SpecialFolder.ProgramFilesX86); produces the following error in LINQPad (Net 3.5): 'System.Environment.SpecialFolder' does not contain a definition for 'ProgramFilesX86' But is fine in LINQPad4 (Net 4.0), so it is only available in Net 4.0 and not 3.5. Note: you also have the case wrong in your code fragment as well - it should be ProgramFilesX86 Cheers Chris From: ozdotnet-boun...@ozdotnet.com [mailto:ozdotnet-boun...@ozdotnet.com] On Behalf Of Ian Thomas Sent: Wednesday, 8 February 2012 7:36 PM To: ozdotnet@ozdotnet.com Subject: Environment variable ProgramFilesx86 - for x86 on 64-bit Windows Is there an environment variable ProgramFilesx86 to locate C:\Program Files (x86) on a 64-bit Windows? Although some of the MSDN documentation specifically mentions an environment variable ProgramFilesX96 member in the Environment.SpecialFolder Enumeration (http://msdn.microsoft.com/en-us/library/system.environment.specialfolder.as px ), it isn't shown by intellisense - Environment.GetFolderPath(System.Environment.SpecialFolder.ProgramFilesx86) and doesn't compile. Further, while I can use the Windows Run to expand %ProgramFiles(x86)% - "%ProgramFiles(x86)%\TextPad 5\TextPad.exe" -m -r "C:\Users\(some location)\MyApp.log" will work as desired, for example - if I want to start a process in code it doesn't expand the environment variable - MyProcess.StartInfo.Filename = "%ProgramFiles(x86)%\TextPad 5\TextPad.exe" (fails) I am using 3.5 Framework, and need to remain with this. Maybe in 4.0 the doco is correct and this works (have not tried) - or am I missing a few very obvious things? _____ Ian Thomas Victoria Park, Western Australia
