{"id":12,"date":"2025-03-08T03:19:49","date_gmt":"2025-03-08T03:19:49","guid":{"rendered":"https:\/\/oerinet.net\/blog\/?p=12"},"modified":"2025-03-08T03:27:03","modified_gmt":"2025-03-08T03:27:03","slug":"installing-and-patch-playroom-cd-rom-1996-for-windows-11","status":"publish","type":"post","link":"https:\/\/oerinet.net\/blog\/installing-and-patch-playroom-cd-rom-1996-for-windows-11\/","title":{"rendered":"Installing and Patching The Playroom CD-ROM (1996) for Windows 11"},"content":{"rendered":"\n

Broderbund’s The Playroom<\/em> is an educational game designed for young children, originally released in the late 1980s and later updated for CD-ROM in 1996. It features a variety of interactive activities meant to teach basic skills like counting, spelling, and problem-solving. The game was part of a series that included The Treehouse<\/em> and The Backyard<\/em>, each offering engaging environments for early learning.<\/p>\n\n\n\n

My dad installed this game on our computer when I was a child, and I played it often. Now with a son of my own who is becoming interested in computers, I wanted to play the game with him on a more modern PC than what I had in 1996.<\/p>\n\n\n\n

Installing The Playroom<\/em> on a modern Windows 11 PC presents some challenges, as the game was designed for much older operating systems. To get it running, I used otvdm<\/strong>, a lightweight compatibility layer that allows 16-bit Windows applications to run on 64-bit Windows. Installation worked smoothly, but when I tried to launch the game, I encountered an error stating that The Playroom MPC requires a 256-color video driver<\/em>.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

Of course, Windows 11 supports far more than 256 colors, but the game\u2019s outdated compatibility check prevented it from running.<\/p>\n\n\n\n

To bypass this limitation, I used IDA<\/strong> (Interactive Disassembler) to analyze the executable and locate the code responsible for the error message. I found a conditional jump instruction that triggered the message when the color depth check failed. By modifying just a single byte, I changed it to an unconditional jump, effectively skipping the check altogether.<\/p>\n\n\n\n

In my version, I changed byte 0x285F9 from 74 to EB.<\/p>\n\n\n\n

After this small patch, The Playroom<\/em> launched successfully, proving that sometimes, a simple tweak can bring classic software back to life on modern hardware.<\/p>\n\n\n\n

Before, with the check in place:<\/strong><\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

After, with the check patched out:<\/strong><\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

Playroom is now working on my Windows 11 machine.<\/strong><\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"

Broderbund’s The Playroom is an educational game designed for young children, originally released in the late 1980s and later updated for CD-ROM in 1996. It features a variety of interactive activities meant to teach basic skills like counting, spelling, and problem-solving. The game was part of a series that included The Treehouse and The Backyard, … Continue reading “Installing and Patching The Playroom CD-ROM (1996) for Windows 11”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/posts\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/comments?post=12"}],"version-history":[{"count":6,"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/posts\/12\/revisions"}],"predecessor-version":[{"id":23,"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/posts\/12\/revisions\/23"}],"wp:attachment":[{"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/media?parent=12"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/categories?post=12"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oerinet.net\/blog\/wp-json\/wp\/v2\/tags?post=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}