Cygwin installation

Hi, I installed on Windows XP, the Cygwin release of XEmacs 21.4.7: -from Cygwin I can launch and use the editor :) -from Windows I cannot launch the editor: XEmacs cannot find the Cygwin dlls :( I found 3 references to XEmacs in the registry database: "runemacs.exe", "xemacs.exe", "xemacs-27.4.7.exe" set to "C:/cygwin/usr/local/bin/i686-pc-cygwin;C:/cygwin/bin;C:/cygwin/usr/bin" Is another registry entry missing ? My config: - Windows XP - XEmacs 21.4.7-1 (cygwin release i686-pc-cygwin) - Setup.exe 1.2.2.11.2.9 Note: last month, I installed the native XEmacs release with success on another XP platform... Thank's for your help. Philippe