One last try to get NSIS building correctly for Bug 326580 - Firefox 2.0 Windows Installer

browser/installer/windows/nsis/7zipNSIS.bat

@@ -1,3 +1,3 @@
-7z a -t7z app.7z setup.exe config ..\..\..\installer-stage\* -mx -m0=BCJ2 -m1=LZMA:d24 -m2=LZMA:d19 -m3=LZMA:d19  -mb0:1 -mb0s1:2 -mb0s2:3
+7z a -t7z app.7z setup.exe config "%1/*" -mx -m0=BCJ2 -m1=LZMA:d24 -m2=LZMA:d19 -m3=LZMA:d19  -mb0:1 -mb0s1:2 -mb0s2:3
 upx --best 7zSD.sfx
 copy /b 7zSD.sfx+app.tag+app.7z SetupGeneric.exe

toolkit/mozapps/installer/windows/install_sub.pl

@@ -291,7 +291,8 @@ sub BuildPlatformInstaller
     copy("$inConfigFiles/app.tag", "$gDirDistInstall/nsis") ||
       die "copy $inConfigFiles/app.tag $gDirDistInstall/nsis";
     
-    system("cmd /C 7zipNSIS.bat");
+    $stagepath = `cygpath -t mixed $topobjdir/installer-stage`;
+    system("cmd /C 7zipNSIS.bat $stagepath");
 
     # Temporary name change to include -nsis before .exe
     $nsisFileNameSpecific = $seiFileNameSpecific;