diff --git a/assets/disk0/tvdos/TVDOS.SYS b/assets/disk0/tvdos/TVDOS.SYS
index be0db00..e296392 100644
--- a/assets/disk0/tvdos/TVDOS.SYS
+++ b/assets/disk0/tvdos/TVDOS.SYS
@@ -146,8 +146,8 @@ _TVDOS.variables = {
     DOSDIR: "\\tvdos",
     LANG: "EN",
     KEYBOARD: "us_qwerty",
-    PATH: "\\tvdos\\bin;\\tbas;\\home",
-    PATHEXT: ".com;.bat;.js",
+    PATH: "\\tvdos\\bin;\\home",
+    PATHEXT: ".com;.bat;.app;.js",
     HELPPATH: "\\tvdos\\help",
     OS_NAME: "TSVM Disk Operating System",
     OS_VERSION: _TVDOS.VERSION
@@ -177,12 +177,20 @@ class TVDOSFileDescriptor {
         }
         else {
             let p = path0.replaceAll("/", "\\")
-            // oh well...
+            this._driveLetter = p[0]
+            p = p.substring(2) // detaches A:
+            // remove trailing slashes
             while (p.endsWith("\\")) {
                 p = p.substring(0, p.length - 1)
             }
-            this._driveLetter = p[0]
-            this._path = p.substring(2) // detaches $:
+            // remove initial slashes...
+            while (p.startsWith("\\")) {
+                p = p.substring(1)
+            }
+            // then add our own
+            p = "\\" + p
+
+            this._path = p
 
             if (driverID == undefined) driverID = "UNDEFINED"
 
@@ -276,6 +284,12 @@ class TVDOSFileDescriptor {
     get name() {
         return this.path.split("\\").last()
     }
+    get extension() {
+        let fname = this.name
+        let dotpos = fname.lastIndexOf('.')
+        if (dotpos < 0) return ''
+        else return fname.substring(dotpos+1)
+    }
     get parentPath() {
 //        return this.path.split("\\").init().join("\\")
         let li = this.path.lastIndexOf("\\")
diff --git a/assets/disk0/tvdos/bin/command.js b/assets/disk0/tvdos/bin/command.js
index 978f4ab..22f03c4 100644
--- a/assets/disk0/tvdos/bin/command.js
+++ b/assets/disk0/tvdos/bin/command.js
@@ -733,10 +733,7 @@ shell.execute = function(line) {
             }
             else {
                 let programCode = searchFile.sread()
-                let extension = undefined
-                // get proper extension
-                let dotSepTokens = cmd.split('.')
-                if (dotSepTokens.length > 1) extension = dotSepTokens[dotSepTokens.length - 1].toUpperCase()
+                let extension = searchFile.extension.toUpperCase()
 
                 if ("BAT" == extension) {
                     // parse and run as batch file
@@ -745,6 +742,13 @@ shell.execute = function(line) {
                         shell.execute(line)
                     })
                 }
+                else if ("APP" == extension) {
+                    let appexec = `A:${_TVDOS.variables.DOSDIR}\\sbin\\appexec.js`
+                    let foundFile = searchFile.fullPath
+
+//                    println(`${appexec} ${foundFile} ${parsedTokens.tail().join(' ')}`)
+                    shell.execute(`${appexec} ${foundFile} ${parsedTokens.tail().join(' ')}`)
+                }
                 else {
                     let gotError = false
 
diff --git a/assets/disk0/home/appexec.js b/assets/disk0/tvdos/sbin/appexec.js
similarity index 97%
rename from assets/disk0/home/appexec.js
rename to assets/disk0/tvdos/sbin/appexec.js
index a74585f..4610031 100644
--- a/assets/disk0/home/appexec.js
+++ b/assets/disk0/tvdos/sbin/appexec.js
@@ -130,7 +130,7 @@ for (let i = 0; i < sectionTable.length - 1; i++) {
     }
 }
 
-let errorlevel = _G.shell.execute(PATH_MOUNT + "run.com")
+let errorlevel = _G.shell.execute(PATH_MOUNT + "run.com" + " " + exec_args.tail().join(' '))
 
 try {
     files.open(PATH_MOUNT).remove()
diff --git a/tsvm_core/src/net/torvald/tsvm/peripheral/TevdDiskDrive.kt b/tsvm_core/src/net/torvald/tsvm/peripheral/TevdDiskDrive.kt
index 498e88d..bcdfacd 100644
--- a/tsvm_core/src/net/torvald/tsvm/peripheral/TevdDiskDrive.kt
+++ b/tsvm_core/src/net/torvald/tsvm/peripheral/TevdDiskDrive.kt
@@ -197,7 +197,7 @@ class TevdDiskDrive(private val vm: VM, private val driveNum: Int, theTevdPath:
         else {
             val inputString = inputData.trimNull().toString(VM.CHARSET)
 
-            println("[TevDiskDrive] $inputString")
+//            println("[TevDiskDrive] $inputString")
 
             if (inputString.startsWith("DEVRST\u0017")) {
                 printdbg("Device Reset")