diff --git a/Tests/base/NSTask/general.m b/Tests/base/NSTask/general.m
index 80b882e6e..852ab5ddf 100644
--- a/Tests/base/NSTask/general.m
+++ b/Tests/base/NSTask/general.m
@@ -10,6 +10,8 @@ int main()
   NSAutoreleasePool   *arp = [NSAutoreleasePool new];
   NSFileManager *mgr;
   NSString *helpers;
+  NSString *testecho;
+  NSString *testcat;
   NSArray *args;
   id task;
   id info;
@@ -18,6 +20,16 @@ int main()
   id pth2;
   BOOL yes;
 
+  /* Windows MSVC adds the '.exe' suffix to executables
+   */
+#if defined(_MSC_VER)
+  testecho = @"testecho.exe";
+  testcat = @"testcat.exe";
+#else
+  testecho = @"testecho";
+  testcat = @"testcat";
+#endif
+  
   info = [NSProcessInfo processInfo];
   env = [[info environment] mutableCopy];
   yes = YES;
@@ -32,7 +44,8 @@ int main()
   helpers = [helpers stringByAppendingPathComponent: @"Helpers"];
   helpers = [helpers stringByAppendingPathComponent: @"obj"];
 
-  pth1 = [helpers stringByAppendingPathComponent: @"testcat"];
+  pth1 = [helpers stringByAppendingPathComponent: testcat];
+  pth2 = [helpers stringByAppendingPathComponent: testecho];
 
   /* Try some tasks.  Make sure the program we use is common between Unix
      and Windows (and others?) */
@@ -43,7 +56,6 @@ int main()
 
   task = [NSTask new];
   args = [NSArray arrayWithObjects: @"xxx", @"yyy", nil];
-  pth2 = [helpers stringByAppendingPathComponent: @"testecho"];
   [task setEnvironment: env];
   [task setLaunchPath: pth2];
   [task setArguments: args];
diff --git a/Tests/base/NSTask/launch.m b/Tests/base/NSTask/launch.m
index e93a41378..3605b4aad 100644
--- a/Tests/base/NSTask/launch.m
+++ b/Tests/base/NSTask/launch.m
@@ -8,15 +8,28 @@
 
 int main()
 {
+  NSAutoreleasePool   *arp = [NSAutoreleasePool new];
   NSTask *task;
   NSPipe *outPipe;
   NSFileManager *mgr;
   NSString      *helpers;
+  NSString *testecho;
+  NSString *testcat;
+  NSString *processgroup;
   NSFileHandle  *outHandle;
-  NSAutoreleasePool *arp;
   NSData *data = nil;
 
-  arp = [[NSAutoreleasePool alloc] init];
+  /* Windows MSVC adds the '.exe' suffix to executables
+   */
+#if defined(_MSC_VER)
+  testecho = @"testecho.exe";
+  testcat = @"testcat.exe";
+  processgroup = @"processgroup.exe";
+#else
+  testecho = @"testecho";
+  testcat = @"testcat";
+  processgroup = @"processgroup";
+#endif
 
   mgr = [NSFileManager defaultManager];
   helpers = [mgr currentDirectoryPath];
@@ -25,7 +38,7 @@ int main()
 
   task = [[NSTask alloc] init];
   outPipe = [[NSPipe pipe] retain];
-  [task setLaunchPath: [helpers stringByAppendingPathComponent: @"testcat"]];
+  [task setLaunchPath: [helpers stringByAppendingPathComponent: testcat]];
   [task setArguments: [NSArray arrayWithObjects: nil]];
   [task setStandardOutput: outPipe]; 
   outHandle = [outPipe fileHandleForReading];
@@ -39,7 +52,7 @@ int main()
 
   task = [[NSTask alloc] init];
   outPipe = [[NSPipe pipe] retain];
-  [task setLaunchPath: [helpers stringByAppendingPathComponent: @"testecho"]];
+  [task setLaunchPath: [helpers stringByAppendingPathComponent: testecho]];
   [task setArguments: [NSArray arrayWithObjects: @"Hello", @"there", nil]];
   [task setStandardOutput: outPipe]; 
   outHandle = [outPipe fileHandleForReading];
@@ -59,7 +72,7 @@ int main()
 #if	!defined(_WIN32)
   task = [[NSTask alloc] init];
   [task setLaunchPath:
-    [helpers stringByAppendingPathComponent: @"processgroup"]];
+    [helpers stringByAppendingPathComponent: processgroup]];
   [task setArguments: [NSArray arrayWithObjects:
     [NSString stringWithFormat: @"%d", getpgrp()],
     nil]];
diff --git a/Tests/base/NSTask/notify.m b/Tests/base/NSTask/notify.m
index 221d3e453..c5e32c84c 100644
--- a/Tests/base/NSTask/notify.m
+++ b/Tests/base/NSTask/notify.m
@@ -32,7 +32,19 @@ static BOOL taskTerminationNotificationReceived;
 - (void) testNSTaskNotifications
 {
   NSDate        *deadline;
+  NSString      *testsleep;
+  NSString      *testecho;
   BOOL          earlyTermination = NO;
+  
+  /* Windows MSVC adds the '.exe' suffix to executables
+   */
+#if defined(_MSC_VER)
+  testecho = @"testecho.exe";
+  testsleep = @"testsleep.exe";
+#else
+  testecho = @"testecho";
+  testsleep = @"testsleep.exe";
+#endif
 
   for (;;)
     {
@@ -48,7 +60,7 @@ static BOOL taskTerminationNotificationReceived;
         {
           BOOL  terminated = NO;
           [task setLaunchPath:
-            [path stringByAppendingPathComponent: @"testsleep"]];
+            [path stringByAppendingPathComponent: testsleep]];
           [task launch];
           NSLog(@"Launched pid %d", [task processIdentifier]);
           NSLog(@"Running run loop for 5 seconds");
@@ -74,7 +86,7 @@ static BOOL taskTerminationNotificationReceived;
       else
         {
           [task setLaunchPath:
-            [path stringByAppendingPathComponent: @"testecho"]];
+            [path stringByAppendingPathComponent: testecho]];
           [task launch];
           NSLog(@"Launched pid %d", [task processIdentifier]);
           NSLog(@"Running run loop for 15 seconds");