diff --git a/elog.nsi b/elog.nsi
index 209a7534..102dfafe 100755
--- a/elog.nsi
+++ b/elog.nsi
@@ -73,6 +73,7 @@ Section "ELOG system (required)" SecSystem
   File nt\release\elconv.exe
   File \windows\system32\libeay32.dll
   File \windows\system32\ssleay32.dll
+  File nt\msvcr90.dll
   File nt\msvcr100.dll
 
   ; doc directory