diff --git a/configure.ac b/configure.ac
index 0f9e78b74..7025249ab 100644
--- a/configure.ac
+++ b/configure.ac
@@ -793,7 +793,7 @@ AC_SUBST(BUILD_TEST)
 AC_SUBST(BUILD_QT)
 AC_SUBST(BUILD_TEST_QT)
 AC_SUBST(MINIUPNPC_CPPFLAGS)
-AC_CONFIG_FILES([Makefile src/Makefile share/setup.nsi share/qt/Info.plist])
+AC_CONFIG_FILES([Makefile src/Makefile share/setup.nsi share/qt/Info.plist src/test/buildenv.py])
 AC_CONFIG_FILES([qa/pull-tester/run-bitcoind-for-test.sh],[chmod +x qa/pull-tester/run-bitcoind-for-test.sh])
 AC_CONFIG_FILES([qa/pull-tester/build-tests.sh],[chmod +x qa/pull-tester/build-tests.sh])
 AC_OUTPUT
diff --git a/src/test/bctest.py b/src/test/bctest.py
index 1839f4fef..ef461014e 100644
--- a/src/test/bctest.py
+++ b/src/test/bctest.py
@@ -7,9 +7,11 @@ import os
 import json
 import sys
 
-def bctest(testDir, testObj):
-	execargs = testObj['exec']
+def bctest(testDir, testObj, exeext):
 
+	execprog = testObj['exec'] + exeext
+	execargs = testObj['args']
+	execrun = [execprog] + execargs
 	stdinCfg = None
 	inputData = None
 	if "input" in testObj:
@@ -22,12 +24,11 @@ def bctest(testDir, testObj):
 	if "output_cmp" in testObj:
 		outputFn = testObj['output_cmp']
 		outputData = open(testDir + "/" + outputFn).read()
-
-	proc = subprocess.Popen(execargs, stdin=stdinCfg, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+	proc = subprocess.Popen(execrun, stdin=stdinCfg, stdout=subprocess.PIPE, stderr=subprocess.PIPE,universal_newlines=True)
 	try:
 		outs = proc.communicate(input=inputData)
 	except OSError:
-		print("OSError, Failed to execute " + execargs[0])
+		print("OSError, Failed to execute " + execprog)
 		sys.exit(1)
 
 	if outputData and (outs[0] != outputData):
@@ -41,13 +42,13 @@ def bctest(testDir, testObj):
 		print("Return code mismatch for " + outputFn)
 		sys.exit(1)
 
-def bctester(testDir, input_basename):
+def bctester(testDir, input_basename, buildenv):
 	input_filename = testDir + "/" + input_basename
 	raw_data = open(input_filename).read()
 	input_data = json.loads(raw_data)
 
 	for testObj in input_data:
-		bctest(testDir, testObj)
+		bctest(testDir, testObj, buildenv.exeext)
 
 	sys.exit(0)
 
diff --git a/src/test/bitcoin-util-test.py b/src/test/bitcoin-util-test.py
index 40690c2fe..0eece14cf 100755
--- a/src/test/bitcoin-util-test.py
+++ b/src/test/bitcoin-util-test.py
@@ -5,8 +5,9 @@
 
 import os
 import bctest
+import buildenv
 
 if __name__ == '__main__':
 	bctest.bctester(os.environ["srcdir"] + "/test/data",
-			"bitcoin-util-test.json")
+			"bitcoin-util-test.json",buildenv)
 
diff --git a/src/test/buildenv.py.in b/src/test/buildenv.py.in
new file mode 100644
index 000000000..1618bdeb7
--- /dev/null
+++ b/src/test/buildenv.py.in
@@ -0,0 +1,2 @@
+#!/usr/bin/python
+exeext="@EXEEXT@"
diff --git a/src/test/data/bitcoin-util-test.json b/src/test/data/bitcoin-util-test.json
index cb74d73ef..f8424b72a 100644
--- a/src/test/data/bitcoin-util-test.json
+++ b/src/test/data/bitcoin-util-test.json
@@ -1,33 +1,41 @@
 [
-  { "exec": ["./bitcoin-tx", "-create"],
+  { "exec": "././bitcoin-tx",
+    "args": ["-create"],
     "output_cmp": "blanktx.hex"
   },
-  { "exec": ["./bitcoin-tx", "-"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-"],
     "input": "blanktx.hex",
     "output_cmp": "blanktx.hex"
   },
-  { "exec": ["./bitcoin-tx", "-", "delin=1"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-", "delin=1"],
     "input": "tx394b54bb.hex",
     "output_cmp": "tt-delin1-out.hex"
   },
-  { "exec": ["./bitcoin-tx", "-", "delin=31"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-", "delin=31"],
     "input": "tx394b54bb.hex",
     "return_code": 1
   },
-  { "exec": ["./bitcoin-tx", "-", "delout=1"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-", "delout=1"],
     "input": "tx394b54bb.hex",
     "output_cmp": "tt-delout1-out.hex"
   },
-  { "exec": ["./bitcoin-tx", "-", "delout=2"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-", "delout=2"],
     "input": "tx394b54bb.hex",
     "return_code": 1
   },
-  { "exec": ["./bitcoin-tx", "-", "locktime=317000"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-", "locktime=317000"],
     "input": "tx394b54bb.hex",
     "output_cmp": "tt-locktime317000-out.hex"
   },
-  { "exec":
-    ["./bitcoin-tx", "-create",
+  { "exec": "./bitcoin-tx",
+    "args":
+    ["-create",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "in=bf829c6bcf84579331337659d31f89dfd138f7f7785802d5501c92333145ca7c:18",
      "in=22a6f904655d53ae2ff70e701a0bbd90aa3975c0f40bfc6cc996a9049e31cdfc:1",
@@ -35,7 +43,8 @@
      "outaddr=4:1P8yWvZW8jVihP1bzHeqfE4aoXNX8AVa46"],
     "output_cmp": "txcreate1.hex"
   },
-  { "exec": ["./bitcoin-tx", "-create", "outscript=0:"],
+  { "exec": "./bitcoin-tx",
+    "args": ["-create", "outscript=0:"],
     "output_cmp": "txcreate2.hex"
   }
 ]