diff --git a/uppsrc/CtrlLib/CtrlLib.usc b/uppsrc/CtrlLib/CtrlLib.usc
index b815ad547..df1500e79 100644
--- a/uppsrc/CtrlLib/CtrlLib.usc
+++ b/uppsrc/CtrlLib/CtrlLib.usc
@@ -193,11 +193,6 @@ subctrl NormalSize {
 subctrl Base {
 	>NormalSize;
 
-	Font   SetFont = StdFont();
-	Color  SetInk = :SBlack;
-	Frame  SetFrame @1;
-//	Qtf    SetInfo @1 ? "Info of control" ;
-
 	ViewRect(w) {
 		r = GetRect();
 		DrawCtrlFrame(w, r, .SetFrame);
@@ -210,7 +205,17 @@ subctrl Base {
 };
 
 subctrl Unknown {
-	> Base;
+	>NormalSize;
+
+	ViewRect(w) {
+		r = GetRect();
+		DrawCtrlFrame(w, r, .SetFrame);
+		return r;
+	}
+	ViewSize(w) {
+		r = ViewRect(w);
+		return Size(r.right - r.left, r.bottom - r.top);
+	}
 };
 
 subctrl TextCtrl {
diff --git a/uppsrc/Draw/Image.cpp b/uppsrc/Draw/Image.cpp
index 1698c9e8d..de372d187 100644
--- a/uppsrc/Draw/Image.cpp
+++ b/uppsrc/Draw/Image.cpp
@@ -353,7 +353,7 @@ uint64 Image::GetAuxData() const
 	return data ? data->aux_data : 0;
 }
 
-static void sMultiply(ImageBuffer& b, int (*op)(RGBA *t, const RGBA *s, int len))
+static void sMultiply(ImageBuffer& b, int (*op)(RGBA *t, const RGBA *s, size_t len))
 {
 	if(b.GetKind() != IMAGE_OPAQUE && b.GetKind() != IMAGE_EMPTY)
 		(*op)(~b, ~b, b.GetLength());
@@ -369,7 +369,7 @@ void Unmultiply(ImageBuffer& b)
 	sMultiply(b, Unmultiply);
 }
 
-static Image sMultiply(const Image& img, int (*op)(RGBA *t, const RGBA *s, int len))
+static Image sMultiply(const Image& img, int (*op)(RGBA *t, const RGBA *s, size_t len))
 {
 	int k = img.GetKind();
 	if(k == IMAGE_OPAQUE || k == IMAGE_EMPTY)
diff --git a/uppsrc/Draw/Image.h b/uppsrc/Draw/Image.h
index 5e4c62666..b8fd9072b 100644
--- a/uppsrc/Draw/Image.h
+++ b/uppsrc/Draw/Image.h
@@ -8,11 +8,11 @@ enum ImageKind {
 	IMAGE_OPAQUE,
 };
 
-inline void Fill(RGBA *t, RGBA c, int n) { memset32(t, *(dword *)&c, n); }
+inline void Fill(RGBA *t, RGBA c, size_t n) { memset32(t, *(dword *)&c, n); }
 inline void Copy(RGBA *t, const RGBA *s, int n) { memcpy_t(t, s, n); }
 
-int  Premultiply(RGBA *t, const RGBA *s, int len);
-int  Unmultiply(RGBA *t, const RGBA *s, int len);
+int  Premultiply(RGBA *t, const RGBA *s, size_t len);
+int  Unmultiply(RGBA *t, const RGBA *s, size_t len);
 
 void TransformComponents(RGBA *t, const RGBA *s, int len,
 	const byte r[], const byte g[], const byte b[], const byte a[]);
@@ -167,26 +167,26 @@ private:
 	void         SetAuxData(uint64 data);
 
 public:
-	Size  GetSize() const                     { return data ? data->buffer.GetSize() : Size(0, 0); }
-	int   GetWidth() const                    { return GetSize().cx; }
-	int   GetHeight() const                   { return GetSize().cy; }
-	int   GetLength() const                   { return data ? data->buffer.GetLength() : 0; }
-	Point GetHotSpot() const;
-	Point Get2ndSpot() const;
-	Size  GetDots() const;
-	Size  GetDPI() const;
-	int   GetKindNoScan() const;
-	int   GetKind() const;
-	int   GetResolution() const;
-	bool  IsOpaque() const                    { return GetKind() == IMAGE_OPAQUE; }
+	Size   GetSize() const                     { return data ? data->buffer.GetSize() : Size(0, 0); }
+	int    GetWidth() const                    { return GetSize().cx; }
+	int    GetHeight() const                   { return GetSize().cy; }
+	size_t GetLength() const                   { return data ? data->buffer.GetLength() : 0; }
+	Point  GetHotSpot() const;
+	Point  Get2ndSpot() const;
+	Size   GetDots() const;
+	Size   GetDPI() const;
+	int    GetKindNoScan() const;
+	int    GetKind() const;
+	int    GetResolution() const;
+	bool   IsOpaque() const                    { return GetKind() == IMAGE_OPAQUE; }
 
-	const RGBA *Begin() const                 { return data ? ~data->buffer : NULL; }
-	const RGBA *begin() const                 { return Begin(); }
-	const RGBA *End() const                   { return Begin() + GetLength(); }
-	const RGBA *end() const                   { return End(); }
-	const RGBA* operator~() const             { return Begin(); }
-	operator const RGBA*() const              { return Begin(); }
-	const RGBA* operator[](int i) const       { ASSERT(data); return data->buffer[i]; }
+	const RGBA *Begin() const                  { return data ? ~data->buffer : NULL; }
+	const RGBA *begin() const                  { return Begin(); }
+	const RGBA *End() const                    { return Begin() + GetLength(); }
+	const RGBA *end() const                    { return End(); }
+	const RGBA* operator~() const              { return Begin(); }
+	operator const RGBA*() const               { return Begin(); }
+	const RGBA* operator[](int i) const        { ASSERT(data); return data->buffer[i]; }
 
 	int64 GetSerialId() const                 { return data ? data->serial : 0; }
 	bool  IsSame(const Image& img) const      { return GetSerialId() == img.GetSerialId(); }
diff --git a/uppsrc/Draw/ImageBlit.cpp b/uppsrc/Draw/ImageBlit.cpp
index aa03efbed..af387b6e8 100644
--- a/uppsrc/Draw/ImageBlit.cpp
+++ b/uppsrc/Draw/ImageBlit.cpp
@@ -82,7 +82,7 @@ String PackRLE(const RGBA *s, int len)
 	return String(r);
 }
 
-int Premultiply(RGBA *t, const RGBA *s, int len)
+int Premultiply(RGBA *t, const RGBA *s, size_t len)
 {
 	const RGBA *e = s + len;
 	while(s < e) {
@@ -125,7 +125,7 @@ void sInitUmTable__()
 	}
 }
 
-int Unmultiply(RGBA *t, const RGBA *s, int len)
+int Unmultiply(RGBA *t, const RGBA *s, size_t len)
 {
 	sInitUmTable__();
 	const RGBA *e = s + len;
diff --git a/uppsrc/Draw/ImageOp.cpp b/uppsrc/Draw/ImageOp.cpp
index fe80d82bd..e6c304825 100644
--- a/uppsrc/Draw/ImageOp.cpp
+++ b/uppsrc/Draw/ImageOp.cpp
@@ -347,7 +347,7 @@ Image Equalight(const Image& img, int thold)
 		histogram[Grayscale(*s)]++;
 		s++;
 	}
-	int n = (thold * img.GetLength()) >> 8;
+	size_t n = (thold * img.GetLength()) >> 8;
 	int h = 255;
 	int l = 0;
 	while(l < h) {
diff --git a/uppsrc/Draw/Iml.cpp b/uppsrc/Draw/Iml.cpp
index f6342571c..c7de20dac 100644
--- a/uppsrc/Draw/Iml.cpp
+++ b/uppsrc/Draw/Iml.cpp
@@ -17,7 +17,7 @@ Vector<ImageIml> UnpackImlData(const void *ptr, int len)
 		ib.SetHotSpot(Point(Peek16le(s + 5), Peek16le(s + 7)));
 		ib.Set2ndSpot(Point(Peek16le(s + 9), Peek16le(s + 11)));
 		s += 13;
-		int len = ib.GetLength();
+		size_t len = ib.GetLength();
 		RGBA *t = ib;
 		const RGBA *e = t + len;
 		if(s + 4 * len > data.End())
diff --git a/uppsrc/Draw/MakeCache.cpp b/uppsrc/Draw/MakeCache.cpp
index 0d4f437f9..906e03348 100644
--- a/uppsrc/Draw/MakeCache.cpp
+++ b/uppsrc/Draw/MakeCache.cpp
@@ -21,7 +21,7 @@ struct scImageMaker : ValueMaker {
 		if(paintonly && !IsNull(img) && img.GetRefCount() == 1)
 			SetPaintOnly__(img);
 		object = img;
-		return img.GetLength() + 64;
+		return (int)min((size_t) INT_MAX, img.GetLength()) + 64;
 	}
 };
 
@@ -36,7 +36,7 @@ void SysImageRealized(const Image& img)
 		ValueCacheAdjustSize([](const Value& v) -> int {
 			if(v.Is<Image>()) {
 				const Image& img = v.To<Image>();
-				return 64 + (~img ? img.GetLength() : 0);
+				return 64 + (~img ? (int)min((size_t) INT_MAX, img.GetLength()) : 0);
 			}
 			return -1;
 		});
diff --git a/uppsrc/umk/umake.cpp b/uppsrc/umk/umake.cpp
index cdfeb8fec..43d839b7d 100644
--- a/uppsrc/umk/umake.cpp
+++ b/uppsrc/umk/umake.cpp
@@ -272,7 +272,7 @@ CONSOLE_APP_MAIN
 				for(const String& s : runargs)
 					Add(s);
 				args.Add(NULL);
-				SetExitCode(execv(ide.target, args.begin()));
+				SetExitCode((int)execv(ide.target, args.begin()));
 			}
 		}
 		else