diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6401acf..64de3e9 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -349,7 +349,7 @@ target_include_directories(libssh2 PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
 # Check for the OS.
 # Daniel's note: this should not be necessary and we need to work to
 # get this removed.
-if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows" OR ${CMAKE_SYSTEM_NAME} STREQUAL "WindowsStore")
   target_compile_definitions(libssh2 PRIVATE LIBSSH2_WIN32)
 elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
   target_compile_definitions(libssh2 PRIVATE LIBSSH2_DARWIN)
diff --git a/src/agent.c b/src/agent.c
index c2ba422..f1799f8 100644
--- a/src/agent.c
+++ b/src/agent.c
@@ -55,6 +55,10 @@
 #include <stdlib.h>
 #endif
 
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP)
+#define IS_UWP 1
+#endif  /* #if defined(WINAPI_FAMILY) */
+
 /* Requests from client to agent for protocol 1 key operations */
 #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1
 #define SSH_AGENTC_RSA_CHALLENGE 3
@@ -254,7 +258,7 @@ struct agent_ops agent_ops_unix = {
 };
 #endif  /* PF_UNIX */
 
-#ifdef WIN32
+#if defined(WIN32) && !defined(IS_UWP)
 /* Code to talk to Pageant was taken from PuTTY.
  *
  * Portions copyright Robert de Bath, Joris van Rantwijk, Delian
@@ -362,8 +366,8 @@ static struct {
     const char *name;
     struct agent_ops *ops;
 } supported_backends[] = {
-#ifdef WIN32
-    {"Pageant", &agent_ops_pageant},
+#if defined(WIN32) && !defined(IS_UWP)
+    {"Pageant", &agent_ops_pageant},
     {"OpenSSH", &agent_ops_openssh},
 #endif  /* WIN32 */
 #ifdef PF_UNIX
diff --git a/src/agent_win.c b/src/agent_win.c
--- a/src/agent_win.c
+++ b/src/agent_win.c
@@ -55,7 +55,11 @@
 #include <stdlib.h>
 #endif
 
-#ifdef WIN32
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP)
+#define IS_UWP 1
+#endif  /* #if defined(WINAPI_FAMILY) */
+
+#if defined(WIN32) && !defined(IS_UWP)
 /* Code to talk to OpenSSH was taken and modified from the Win32 port of
  * Portable OpenSSH by the PowerShell team. Commit
  * 8ab565c53f3619d6a1f5ac229e212cad8a52852c of