diff --git a/README.md b/README.md
index 696bd73..610c40f 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ exec {
 
 ### `args`
 
-The full command line arguments including the executable and all parameters.
+The full command line including the executable and all arguments.
 
 ```kotlin
 exec {
@@ -74,9 +74,12 @@ The following predefined values are available:
 
 Name          | Operating System
 --------------|-----------------------
+`Os.CYGWIN`   | Cygwin
 `Os.FREEBSD`  | FreeBSD
 `Os.LINUX`    | Linux
 `Os.MAC`      | Apple Macintosh / OS X
+`Os.MINGW`    | Minimalist GNU for Windows
+`OS.MSYS`     | MSYS
 `Os.OPENVMS`  | OpenVMS
 `Os.OS400`    | OS/400
 `Os.SOLARIS`  | Solaris / SunOS
@@ -118,7 +121,7 @@ exec {
 
 ## taskName
 
-Additionally, you can specify a task name to easily identify multiple `exec` directives.
+Additionally, you can specify a task name to easily identify multiple `exec` tasks.
 
 ```kotlin
 exec {
@@ -162,7 +165,4 @@ exec {
     commandLine("/bin/sh", "-c", "./stop.sh 2> error.txt", os = setOf(Os.LINUX))
     commandLine("cmd", "/c", "stop.bat 2> error.txt", os = setOf(Os.WINDOWS))
 }
-```
-
-
-
+```
\ No newline at end of file
diff --git a/src/main/kotlin/net/thauvin/erik/kobalt/plugin/exec/ExecPlugin.kt b/src/main/kotlin/net/thauvin/erik/kobalt/plugin/exec/ExecPlugin.kt
index 066c695..ac5f138 100644
--- a/src/main/kotlin/net/thauvin/erik/kobalt/plugin/exec/ExecPlugin.kt
+++ b/src/main/kotlin/net/thauvin/erik/kobalt/plugin/exec/ExecPlugin.kt
@@ -102,6 +102,18 @@ class ExecPlugin @Inject constructor(val taskContributor: TaskContributor, val c
             Os.OS400 -> {
                 return curOs.contains("os/400")
             }
+            Os.CYGWIN -> {
+                val cygwin: String? = System.getenv("ORIGINAL_PATH")
+                return cygwin?.contains("/cygdrive/") ?: false
+            }
+            Os.MINGW -> {
+                val mingw: String? = System.getenv("MSYSTEM")
+                return mingw?.startsWith("MINGW") ?: false
+            }
+            Os.MSYS -> {
+                val msys: String? = System.getenv("MSYSTEM")
+                return msys?.startsWith("MSYS") ?: false
+            }
         }
     }
 
@@ -184,7 +196,7 @@ enum class Fail {
 }
 
 enum class Os {
-    FREEBSD, LINUX, MAC, OPENVMS, OS400, SOLARIS, TANDEM, WINDOWS, ZOS
+    CYGWIN, FREEBSD, LINUX, MAC, MINGW, MSYS, OPENVMS, OS400, SOLARIS, TANDEM, WINDOWS, ZOS
 }
 
 data class CommandLine(var args: List<String> = emptyList(), var dir: String = "", var os: Set<Os> = emptySet(),