If you install an assembly with the same Name as one that is already in the GAC, it will simply overwrite it. Was there a problem you were having with dups or something?
-bc -----Original Message----- From: Sam Gentile [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 29, 2002 5:29 PM To: [EMAIL PROTECTED] Subject: [DOTNET] How do we programatically determine if GAC contains particular assembly? I have an installer program that needs to know whether PIAs are already installed in the GAC so that I won't install them twice. So the question is how can we programmatically tell whether the GAC contains a particular assembly? References: I found these articles: Assembly.Load Method (AssemblyName) ms-help://MS.VSCC/MS.MSDNVS/cpref/html/frlrfsystemreflectionassemblyclas sloadtopic1.htm Assembly.LoadWithPartialName ms-help://MS.VSCC/MS.MSDNVS/cpref/html/frlrfSystemReflectionAssemblyClas sLoadWithPartialNameTopic.htm How the Runtime Locates Assemblies ms-help://MS.VSCC/MS.MSDNVS/cpguide/html/cpconhowruntimelocatesassemblie s.htm The third article says that if you want to load an assembly from the GAC as opposed to just from the app directory, you need to call Assembly.LoadWithPartialName rather than Assembly.Load. This is the best answer I've found so far: try to load the assembly then if that fails, then the assembly isn't there. This is lame, however. We don't want to load the assembly, we just want to know whether it exists or not. --------------------- Sam Gentile .NET Consultant Co-author: Wrox Visual C++ .NET: A primer for C++ developers BLOG: http://radio.weblogs.com/0105852/ http://www.project-inspiration.com/sgentile/DotNet.htm http://www.project-inspiration.com/sgentile/ --------------------------- _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com. You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
