ThinkC Think C & Installing CMaster

Relating to ThinkC Development

SitesOnFire

New Tinkerer
Nov 22, 2025
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Hey everyone,

I was watching jcs's video explaining CMaster, and I wanted to start using it myself. I've been using Think C 5.0.4. I ran the CMaster installer which says it was successful, and trying to install it again, says that it is already installed. When I fire up Think C, I can't see any difference.

I spent a fair bit of time yesterday trying to set it up both on my Macintosh Classic and within mini vmac and I've gotten nowhere.

I downloaded CMaster from here.

Has anyone had any issues or have any tips on how I get this working within Think C?

Thanks
 

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vkoskiv

New Tinkerer
Aug 15, 2026
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Hey, I ran into this exact same issue last week and figured out that after running the installer to patch the Think C program, you also need to drag the "CMaster" file into the directory your Think C program resides in. I also dragged in the "CMaster Prefs" file, but I didn't test if that makes a difference.
I assume this would've been documented in the manual the README mentions, but I've no clue if anyone has that digitized.

Hope this helps!
 
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SitesOnFire

New Tinkerer
Nov 22, 2025
18
11
3
Wow. Thank you very much. I was trying to get this to work earlier this week and failed. This worked perfectly! I can't believe it was so simple