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If the default browser is Netscape then in the Tools->Options, the browser is set to netscape. However, if a user has Netscape 6 or greater then when Netscape is opened when executing a Web App then there will be an error. Annotation: Could not access the URL through the external browser. Check the browser configuration. From the Tools menu, choose Options. In the Options window, expand the IDE Configuration node. Then expand the Server and External Tool Settings node followed by the Web Browsers node. Select the external browser type and modify the Browser Executable property if necessary. org.netbeans.modules.extbrowser.NbBrowserException: DdeConnect errno >400A< when connecting to server NETSCAPE, topic WWW_Activate. at org.netbeans.modules.extbrowser.NbDdeBrowserImpl.reqDdeMessage(Native Method) at org.netbeans.modules.extbrowser.NbDdeBrowserImpl.access$500(NbDdeBrowserImpl.java:53) at org.netbeans.modules.extbrowser.NbDdeBrowserImpl$URLDisplayer.dispatchURL(NbDdeBrowserImpl.java:331) at org.netbeans.modules.extbrowser.NbDdeBrowserImpl$URLDisplayer.run(NbDdeBrowserImpl.java:294) [catch] at java.lang.Thread.run(Thread.java:534) There seems to be a workaround. In Tools->Options, set the browser to netscape6 However this workaround is unacceptable since this change is too difficult for users and not an "Out of the box experience, OOTBE"
I have an updated and redesigned prototype of extbrowser module in prj40_prototype branch that solves this one, and also some other problems already - you can check it if you want. However, I'm not gonna integrate it into trunk until I solve issues with import of settings from previous versions. Other things are already working, though. So for now, the fix in trunk: http://extbrowser.netbeans.org/source/browse/extbrowser/src/org/netbeans/modules/extbrowser/NbDdeBrowserImpl.java.diff?r1=1.28&r2=1.29 http://extbrowser.netbeans.org/source/browse/extbrowser/src/org/netbeans/modules/extbrowser/WinWebBrowser.java.diff?r1=1.17&r2=1.18
Adding relnote, since the bug is not fixed in release35 branch, therefore it is still appearing in Nevada/Arrow.
Adding arrow keyword
Workaround is to use a different browser than Netscape 7 (e.g. Mozilla).