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docs/interrupts/int-html/rb-0267.htm
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docs/interrupts/int-html/rb-0267.htm
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<HTML>
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<HEAD>
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<TITLE>Int 10/AX=4E01h
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</TITLE>
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<META NAME="Description" CONTENT="
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Int 10/AX=4E01h - VESA XGA BIOS Extensions - RETURN XGA SUBSYSTEM INFORMATION -
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AX = 4E01h
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DX = XGA handle (0 to number of XGAs-1)
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ES:DI - 256-byte buffer for subsystem information (see #00071)
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Return: AL = 4Eh if function supported
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AH = status
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00h function successful
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else error code
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SeeAlso: AX=4E00h,AX=4E02h
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Format of XGA subsystem information:
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">
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<META NAME="robots" CONTENT="none">
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</HEAD>
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<BODY BGCOLOR="#FFD0A0">
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<center>
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<h2>Int 10/AX=4E01h
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</h2>
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</center><p>
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<table border=1 cellpadding=3 cellspacing=1>
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<td>
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<a href="rb-0266.htm" tppabs="http://www.ctyme.com/intr/rb-0266.htm">
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<a href="rb-0268.htm" tppabs="http://www.ctyme.com/intr/rb-0268.htm">
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<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
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<a href="javascript:if(confirm('http://www.ctyme.com/rbrown.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/rbrown.htm'" tppabs="http://www.ctyme.com/rbrown.htm">
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<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<h3><font color=#C00040>VESA XGA BIOS Extensions - RETURN XGA SUBSYSTEM INFORMATION</font></h3>
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<PRE>
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AX = 4E01h
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DX = XGA handle (0 to number of XGAs-1)
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ES:DI -> 256-byte buffer for subsystem information <a href="rb-0267.htm#Table71" tppabs="http://www.ctyme.com/intr/rb-0267.htm#Table71">(see #00071)</a><br>
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<p><b>Return:</b><br>AL = 4Eh if function supported
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AH = status
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00h function successful
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else error code
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</PRE>
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<p><b>See Also:</b>
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<a href="rb-0266.htm" tppabs="http://www.ctyme.com/intr/rb-0266.htm">AX=4E00h</a> - <a href="rb-0268.htm" tppabs="http://www.ctyme.com/intr/rb-0268.htm">AX=4E02h</a>
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<PRE>
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<p>
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Format of XGA subsystem information:
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<a name=table71></a>
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Offset Size Description (Table 00071)
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00h DWORD pointer to null-terminated board OEM string
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04h DWORD capabilities <a href="rb-0267.htm#Table72" tppabs="http://www.ctyme.com/intr/rb-0267.htm#Table72">(see #00072)</a>
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08h DWORD pointer to 8KB XGA ROM (or NULL)
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0Ch DWORD pointer to the XGA memory mapped registers
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10h WORD base address of XGA I/O registers (21x0h)
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12h DWORD pointer to start of physical video memory
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(A000h:0000h or B000h:0000h)
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16h DWORD physical address of 4MB aperture (or NULL if none)
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1Ah DWORD physical address of 1MB aperture (or NULL if none)
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1Eh DWORD physical address of 64KB aperture (or NULL if not enabled)
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22h DWORD physical address of OEM aperture (or NULL if none)
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26h WORD size of OEM aperture in 64KByte units
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28h DWORD pointer to list of video modes
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The list is a series of WORDs terminated by FFFFh
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2Ch WORD number of 64KB blocks on the board
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2Eh DWORD XGA manufacturer ID
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byte 0 POS data index 1
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byte 1 is index 2
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byte 2 is 21xAh index 75h
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32h 206 BYTEs reserved
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<p>
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Bitfields for XGA capabilities:
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<a name=table72></a>
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Bit(s) Description (Table 00072)
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<p><b>0-1 board bus architecture:</b><br>0=MCA, 1=ISA, 3=EISA
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2-3 reserved
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4-6 DMA Channel assigned for acquiring bus mastership (only for ISA bus)
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7 DMA Channel Status (ISA only). enabled if set
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8-31 reserved
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</PRE>
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<p>
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<b>Category: <a href="cat-046.htm" tppabs="http://www.ctyme.com/intr/cat-046.htm">
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Video</a>
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- <a href="int-10.htm" tppabs="http://www.ctyme.com/intr/int-10.htm">
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Int 10h</a>
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- <a href="alpha-v.htm" tppabs="http://www.ctyme.com/intr/alpha-v.htm">
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V</a>
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</b><p><p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<table border=1 cellpadding=3 cellspacing=1>
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<td>
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<a href="rb-0266.htm" tppabs="http://www.ctyme.com/intr/rb-0266.htm">
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<a href="rb-0268.htm" tppabs="http://www.ctyme.com/intr/rb-0268.htm">
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<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
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<a href="javascript:if(confirm('http://www.ctyme.com/rbrown.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/rbrown.htm'" tppabs="http://www.ctyme.com/rbrown.htm">
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<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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<!-- Bottom Link Start -->
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<center>
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<p><table border=1 bgcolor="#ffff99"><tr><td>
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<table border=0 height=80>
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<tr align=center><td width="65">
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<a href="javascript:if(confirm('http://www.ctyme.com/sponsor.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/sponsor.htm'" tppabs="http://www.ctyme.com/sponsor.htm">
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<img src="tip.gif" tppabs="http://graphics.ctyme.com/gif/tip.gif" ALT="Sponsors" height="40" width="40"></a>
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<br><a href="javascript:if(confirm('http://www.ctyme.com/sponsor.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/sponsor.htm'" tppabs="http://www.ctyme.com/sponsor.htm">Shopping</a>
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</td><td width="65">
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<a href="javascript:if(confirm('http://talk.ctyme.com/webx.cgi?13@@.ee6b2be \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://talk.ctyme.com/webx.cgi?13@@.ee6b2be'" tppabs="http://talk.ctyme.com/webx.cgi?13@@.ee6b2be">
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<img src="comment.gif" tppabs="http://graphics.ctyme.com/gif/comment.gif" ALT="Forum" height="40" width="40"></a>
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<br><a href="javascript:if(confirm('http://talk.ctyme.com/webx.cgi?13@@.ee6b2be \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://talk.ctyme.com/webx.cgi?13@@.ee6b2be'" tppabs="http://talk.ctyme.com/webx.cgi?13@@.ee6b2be">Forum</a>
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</td><td width="65">
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<a href="javascript:if(confirm('http://www.ctyme.com/mail.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/mail.htm'" tppabs="http://www.ctyme.com/mail.htm">
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<img src="mail.gif" tppabs="http://graphics.ctyme.com/gif/mail.gif" ALT="email" height="40" width="40"></a>
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<br><a href="javascript:if(confirm('http://www.ctyme.com/mail.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/mail.htm'" tppabs="http://www.ctyme.com/mail.htm">EMail</a>
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</td><td width="65">
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<a href="javascript:if(confirm('http://www.ctyme.com/map.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/map.htm'" tppabs="http://www.ctyme.com/map.htm">
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<img src="toc.gif" tppabs="http://graphics.ctyme.com/gif/toc.gif" ALT="Index" height="40" width="40"></a>
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<br><a href="javascript:if(confirm('http://www.ctyme.com/map.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/map.htm'" tppabs="http://www.ctyme.com/map.htm">Index</a>
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</td><td width="65">
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<a href="javascript:if(confirm('http://www.ctyme.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/'" tppabs="http://www.ctyme.com/">
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<img src="home.gif" tppabs="http://graphics.ctyme.com/gif/home.gif" ALT="Home" height="40" width="40"></a>
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<br><a href="javascript:if(confirm('http://www.ctyme.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/'" tppabs="http://www.ctyme.com/">Home</a>
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</td><td width="90">
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<center>
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<FORM ACTION="https://secure.paypal.com/cgi-bin/webscr" tppabs="https://secure.paypal.com/cgi-bin/webscr" METHOD="POST" traget="_blank">
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<INPUT TYPE="hidden" NAME="cmd" VALUE="_xclick">
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<INPUT TYPE="hidden" NAME="business" VALUE="marc@perkel.com">
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<INPUT TYPE="hidden" NAME="return" VALUE="http://www.perkel.com">
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<INPUT TYPE="hidden" NAME="item_name" VALUE="Donation To Support this Site">
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<INPUT TYPE="hidden" NAME="no_intl" VALUE="1">
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<INPUT TYPE="image" SRC="x-click-but7.gif" tppabs="http://images.paypal.com/images/x-click-but7.gif" vspace=9
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NAME="submit" ALT="Make payments with PayPal - it's fast, free and secure!">
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</FORM>
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</td></tr></table></td></tr></table><p>
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<center>
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<p>
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<a href="javascript:if(confirm('http://www.ctyme.com/hosting/index.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/hosting/index.htm'" tppabs="http://www.ctyme.com/hosting/index.htm" target="_blank">
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<img src="ctymehost.gif" tppabs="http://graphics.ctyme.com/gif/ctymehost.gif"
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border=3 height=60 width=468></a>
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<p>
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<!-- Ad End --->
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</center>
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<FORM ACTION="http://service.bfast.com/bfast/click" target="_blank">
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<INPUT TYPE="hidden" NAME="siteid" VALUE="30472466" >
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<INPUT TYPE="hidden" NAME="bfpage" VALUE="horizontal">
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<INPUT TYPE="hidden" NAME="bfmid" VALUE="27253343" >
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<INPUT TYPE="hidden" NAME="num" VALUE="30">
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<table bgcolor=white border=3><tr><td>
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<table bgcolor=white border=0>
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<tr><td>
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<IMG SRC="serve-bfmid=27253343&siteid=30472466&bfpage=horizontal.gif" tppabs="http://service.bfast.com/bfast/serve?bfmid=27253343&siteid=30472466&bfpage=horizontal" BORDER="0" WIDTH="1" HEIGHT="1" align=right NOSAVE >
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<center><b>Search the web with Google</b></center>
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</td></tr><tr><td>
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<TABLE cellpadding=0 cellspacing=5 bgcolor="#FFFFFF">
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<tr><td bgcolor="#0000cc"><IMG SRC="cleardot.gif" tppabs="http://www.google.com/images/cleardot.gif" height=1 border="0" ALT="Google"></td></tr><tr><td>
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<IMG SRC="affiliate_logo.gif" tppabs="http://www.google.com/affiliates/affiliate_logo.gif" border="0" ALT="Google" align="center">
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<INPUT TYPE=text name=q size=30 maxlength=255 value="">
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<INPUT type=submit name=sa VALUE="Go">
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</td></tr>
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<tr><td bgcolor="#0000cc"><IMG SRC="cleardot.gif" tppabs="http://www.google.com/images/cleardot.gif" height=1 border="0" ALT="Google"></td></tr></TABLE>
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</td></tr></table>
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</tr></td></table>
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</FORM>
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</center>
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<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<!-- Bottom Link End -->
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</BODY>
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</HTML>
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