Added Windows support stuff.

Windows/RecodeCertificate.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   width="32"
+   height="32"
+   viewBox="0 0 32 32"
+   id="svg2"
+   inkscape:version="0.48.4 r9939"
+   sodipodi:docname="RecodeCertificate.svg">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1676"
+     inkscape:window-height="1007"
+     id="namedview28"
+     showgrid="false"
+     inkscape:zoom="7.375"
+     inkscape:cx="-7.9322034"
+     inkscape:cy="26.847458"
+     inkscape:window-x="0"
+     inkscape:window-y="41"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg2" />
+  <desc
+     id="desc6" />
+  <metadata
+     id="metadata15">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs8">
+    <marker
+       refX="0"
+       refY="0"
+       orient="auto"
+       id="Arrow2Lend"
+       style="overflow:visible">
+      <path
+         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
+         transform="matrix(-1.1,0,0,-1.1,-1.1,0)"
+         id="path3874"
+         style="fill-rule:evenodd;stroke-width:0.625;stroke-linejoin:round" />
+    </marker>
+    <marker
+       refX="0"
+       refY="0"
+       orient="auto"
+       id="EmptyTriangleOutL"
+       style="overflow:visible">
+      <path
+         d="m 5.77,0 -8.65,5 0,-10 8.65,5 z"
+         transform="matrix(0.8,0,0,0.8,-4.8,0)"
+         id="path3926"
+         style="fill:#ffffff;fill-rule:evenodd;stroke:#000000;stroke-width:1pt" />
+    </marker>
+    <marker
+       refX="0"
+       refY="0"
+       orient="auto"
+       id="Arrow2Send"
+       style="overflow:visible">
+      <path
+         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
+         transform="matrix(-0.3,0,0,-0.3,0.69,0)"
+         id="path3799"
+         style="fill-rule:evenodd;stroke-width:0.625;stroke-linejoin:round" />
+    </marker>
+    <marker
+       refX="0"
+       refY="0"
+       orient="auto"
+       id="Arrow1Send"
+       style="overflow:visible">
+      <path
+         d="M 0,0 5,-5 -12.5,0 5,5 0,0 z"
+         transform="matrix(-0.2,0,0,-0.2,-1.2,0)"
+         id="path3781"
+         style="fill-rule:evenodd;stroke:#000000;stroke-width:1pt" />
+    </marker>
+    <marker
+       refX="0"
+       refY="0"
+       orient="auto"
+       id="Arrow1Mend"
+       style="overflow:visible">
+      <path
+         d="M 0,0 5,-5 -12.5,0 5,5 0,0 z"
+         transform="matrix(-0.4,0,0,-0.4,-4,0)"
+         id="path3775"
+         style="fill-rule:evenodd;stroke:#000000;stroke-width:1pt" />
+    </marker>
+    <marker
+       refX="0"
+       refY="0"
+       orient="auto"
+       id="Arrow2Mend"
+       style="overflow:visible">
+      <path
+         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
+         transform="scale(-0.6,-0.6)"
+         id="path3793"
+         style="fill-rule:evenodd;stroke-width:0.625;stroke-linejoin:round" />
+    </marker>
+  </defs>
+  <g
+     id="g3846">
+    <g
+       transform="translate(-5.4237288,-8.8135594)"
+       style="fill:#c8c8c8;fill-opacity:1"
+       id="g3028">
+      <path
+         inkscape:connector-curvature="0"
+         style="fill:#c8c8c8;fill-opacity:1;stroke:none"
+         id="path3030"
+         d="m 21.847458,24.330847 0,2.050509 -12.9975384,0 c -0.553645,0 -1.002462,-0.44892 -1.002462,-1.007484 l 0,-12.985032 c 0,-0.556418 0.439458,-1.007484 1.002462,-1.007484 l 19.9950764,0 c 0.553645,0 1.002462,0.44892 1.002462,1.007484 l 0,12.985032 c 0,0.556418 -0.439458,1.007484 -1.002462,1.007484 l -1.997538,0 0,-2.050509 c 0.618593,-0.631268 1,-1.495838 1,-2.449491 0,-1.932997 -1.567003,-3.5 -3.5,-3.5 -1.932997,0 -3.5,1.567003 -3.5,3.5 0,0.953653 0.381407,1.818223 1,2.449491 l 0,0 z m 4,0.713693 0,3.936792 -1.5,-1.49997 -1.5,1.49997 0,-3.936792 c 0.454628,0.21597 0.963201,0.336816 1.5,0.336816 0.536799,0 1.045372,-0.120846 1.5,-0.336816 l 0,0 z m 1,2.336816 1.995053,0 c 1.107921,0 2.004947,-0.895478 2.004947,-2.000106 l 0,-12.999788 c 0,-1.110048 -0.897645,-2.000106 -2.004947,-2.000106 l -19.9901064,0 c -1.107921,0 -2.004947,0.895478 -2.004947,2.000106 l 0,12.999788 c 0,1.110048 0.897645,2.000106 2.004947,2.000106 l 12.9950534,0 0,4 2.5,-2.5 2.5,2.5 0,-4 z m -8,-9 0,1 -9.0000004,0 0,-1 9.0000004,0 z m -3,3 0,1 -6.0000004,0 0,-1 6.0000004,0 z m 8.5,3 c -1.380712,0 -2.5,-1.119288 -2.5,-2.5 0,-1.380712 1.119288,-2.5 2.5,-2.5 1.380712,0 2.5,1.119288 2.5,2.5 0,1.380712 -1.119288,2.5 -2.5,2.5 z" />
+      <text
+         sodipodi:linespacing="125%"
+         style="font-size:22px;font-style:normal;font-variant:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#c8c8c8;fill-opacity:1;stroke:none;font-family:FS Garamond;-inkscape-font-specification:FS Garamond Book"
+         xml:space="preserve"
+         id="text3032"
+         y="17.762712"
+         x="11.266521"><tspan
+           style="font-size:8px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;fill:#c8c8c8;fill-opacity:1;font-family:Mishmash BRK;-inkscape-font-specification:Mishmash BRK"
+           id="tspan3034"
+           y="17.762712"
+           x="11.266521">P12</tspan></text>
+    </g>
+    <g
+       id="g3823"
+       style="fill:#000000">
+      <path
+         d="m 21.847458,24.330847 0,2.050509 -12.9975384,0 c -0.553645,0 -1.002462,-0.44892 -1.002462,-1.007484 l 0,-12.985032 c 0,-0.556418 0.439458,-1.007484 1.002462,-1.007484 l 19.9950764,0 c 0.553645,0 1.002462,0.44892 1.002462,1.007484 l 0,12.985032 c 0,0.556418 -0.439458,1.007484 -1.002462,1.007484 l -1.997538,0 0,-2.050509 c 0.618593,-0.631268 1,-1.495838 1,-2.449491 0,-1.932997 -1.567003,-3.5 -3.5,-3.5 -1.932997,0 -3.5,1.567003 -3.5,3.5 0,0.953653 0.381407,1.818223 1,2.449491 l 0,0 z m 4,0.713693 0,3.936792 -1.5,-1.49997 -1.5,1.49997 0,-3.936792 c 0.454628,0.21597 0.963201,0.336816 1.5,0.336816 0.536799,0 1.045372,-0.120846 1.5,-0.336816 l 0,0 z m 1,2.336816 1.995053,0 c 1.107921,0 2.004947,-0.895478 2.004947,-2.000106 l 0,-12.999788 c 0,-1.110048 -0.897645,-2.000106 -2.004947,-2.000106 l -19.9901064,0 c -1.107921,0 -2.004947,0.895478 -2.004947,2.000106 l 0,12.999788 c 0,1.110048 0.897645,2.000106 2.004947,2.000106 l 12.9950534,0 0,4 2.5,-2.5 2.5,2.5 0,-4 z m -8,-9 0,1 -9.0000004,0 0,-1 9.0000004,0 z m -3,3 0,1 -6.0000004,0 0,-1 6.0000004,0 z m 8.5,3 c -1.380712,0 -2.5,-1.119288 -2.5,-2.5 0,-1.380712 1.119288,-2.5 2.5,-2.5 1.380712,0 2.5,1.119288 2.5,2.5 0,1.380712 -1.119288,2.5 -2.5,2.5 z"
+         id="path3814"
+         style="fill:#000000;fill-opacity:1;stroke:none"
+         inkscape:connector-curvature="0" />
+      <text
+         x="11.266521"
+         y="17.762712"
+         id="text3816"
+         xml:space="preserve"
+         style="font-size:22px;font-style:normal;font-variant:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:FS Garamond;-inkscape-font-specification:FS Garamond Book"
+         sodipodi:linespacing="125%"><tspan
+           x="11.266521"
+           y="17.762712"
+           id="tspan3818"
+           style="font-size:8px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;fill:#000000;fill-opacity:1;font-family:Mishmash BRK;-inkscape-font-specification:Mishmash BRK">P12</tspan></text>
+    </g>
+    <path
+       d="m 2.7651254,19.171905 0,3.432966 3.6900884,0"
+       id="path3847"
+       style="fill:none;stroke:#000000;stroke-width:0.29270807;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;marker-end:url(#EmptyTriangleOutL)"
+       inkscape:connector-curvature="0" />
+  </g>
+</svg>

Windows/roll_executable.bat

+pyinstaller --onefile --icon Windows\RecodeCertificate.ico RecodeCertificate.py