diff --git a/Makefile.win b/Makefile.win
index d033157..f1b111e 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -28,13 +28,28 @@ REMOVECOMMAND = rm -f
 TYPECOMMAND = cat
 COMPATLIBS =
 MAKEFILE = Makefile.win
-PLUGINS = utf8tocp1251 WindowsAuthentication TrafficPlugin StringsPlugin SSLPLugin PCREPlugin
+PLUGINS := utf8tocp1251 WindowsAuthentication TrafficPlugin StringsPlugin
 VERFILE := 3proxyres.o $(VERFILE)
 VERSION := $(VERSION)
 VERSIONDEP := 3proxyres.o $(VERSIONDEP)
 BUILDDATE := $(BUILDDATE)
 AFTERCLEAN = (find . -type f -name "*.o" -delete && find . -type f -name "*.res" -delete && find src/ -type f -name "Makefile.var" -delete && find bin/ -type f -executable -delete) || true
 
+OPENSSL_CHECK = $(shell echo "#include <openssl/ssl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
+ifeq ($(OPENSSL_CHECK), true)
+    LIBS += -l crypto -l ssl
+    PLUGINS += SSLPlugin
+endif
+PCRE_CHECK = $(shell echo "#include <pcre.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
+ifeq ($(PCRE_CHECK), true)
+    PLUGINS += PCREPlugin
+endif
+PAM_CHECK = $(shell echo "#include <security/pam_appl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
+ifeq ($(PAM_CHECK), true)
+    PLUGINS += PamAuth
+endif
+
+
 include Makefile.inc
 
 3proxyres.o: