Creating Chrome Extension Installer In NSIS

I am trying to make a chrome extension installer in nsis.

WriteRegStr HKLM "Software\Google\Chrome\Extensions\${EXT_ID}" "path" "${INSTALL_DIR}\${CRXNAME}"

WriteRegStr HKLM "Software\Google\Chrome\Extensions\${EXT_ID}" "version"     "${PRODUCT_VERSION}"

I got it working .

But I am trying to make a installer to add extension to chrome silently.

See this article: No more silent extension installs

No Silently install still works i saw Somewhere.