How about this. I had this in an old NSIS script laying around. ; Check to see if already installed ReadRegStr $R0 HKLM “SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\<YOUR-APP-NAME>” “UninstallString” IfFileExists $R0 +1 NotInstalled messagebox::show MB_DEFBUTTON4|MB_TOPMOST “<YOUR-APP-NAME>” \ “0,103” \ “<YOUR-APP-NAME> is already installed.” \ “Launch Uninstall” “Cancel” Pop $R1 StrCmp $R1 2 Quit +1 Exec $R0 Quit: Quit NotInstalled:
You can call ant scripts from Java code. See this article (scroll down to the “Running Ant via Java” section) and this article: File buildFile = new File(“build.xml”); Project p = new Project(); p.setUserProperty(“ant.file”, buildFile.getAbsolutePath()); p.init(); ProjectHelper helper = ProjectHelper.getProjectHelper(); p.addReference(“ant.projectHelper”, helper); helper.parse(p, buildFile); p.executeTarget(p.getDefaultTarget()); Update I tried with the following ant file , it … Read more
Outfile RequireAdmin.exe RequestExecutionLevel admin ;Require admin rights on NT6+ (When UAC is turned on) !include LogicLib.nsh Function .onInit UserInfo::GetAccountType pop $0 ${If} $0 != “admin” ;Require admin rights on NT4+ MessageBox mb_iconstop “Administrator rights required!” SetErrorLevel 740 ;ERROR_ELEVATION_REQUIRED Quit ${EndIf} FunctionEnd Page InstFiles Section SectionEnd is the basic code I usually recommend to make sure … Read more
The JVM architecture in use can be retrieved using the “os.arch” property: System.getProperty(“os.arch”); The “os” part seems to be a bit of a misnomer, or perhaps the original designers did not expect JVMs to be running on architectures they weren’t written for. Return values seem to be inconsistent. The NetBeans Installer team are tackling the … Read more